diff --git a/flutter_monisuo/lib/data/models/kline_candle.dart b/flutter_monisuo/lib/data/models/kline_candle.dart
new file mode 100644
index 0000000..9b653be
--- /dev/null
+++ b/flutter_monisuo/lib/data/models/kline_candle.dart
@@ -0,0 +1,88 @@
+/// K线蜡烛数据模型
+class KlineCandle {
+  final String coinCode;
+  final String interval;
+  final int openTime;
+  final double openPrice;
+  final double highPrice;
+  final double lowPrice;
+  final double closePrice;
+  final double volume;
+  final int closeTime;
+  final bool isClosed;
+  final int? timestamp;
+
+  const KlineCandle({
+    required this.coinCode,
+    required this.interval,
+    required this.openTime,
+    required this.openPrice,
+    required this.highPrice,
+    required this.lowPrice,
+    required this.closePrice,
+    required this.volume,
+    required this.closeTime,
+    this.isClosed = true,
+    this.timestamp,
+  });
+
+  factory KlineCandle.fromJson(Map<String, dynamic> json) {
+    return KlineCandle(
+      coinCode: json['coinCode'] as String? ?? '',
+      interval: json['interval'] as String? ?? '1h',
+      openTime: json['openTime'] as int? ?? 0,
+      openPrice: _toDouble(json['openPrice']),
+      highPrice: _toDouble(json['highPrice']),
+      lowPrice: _toDouble(json['lowPrice']),
+      closePrice: _toDouble(json['closePrice']),
+      volume: _toDouble(json['volume']),
+      closeTime: json['closeTime'] as int? ?? 0,
+      isClosed: json['isClosed'] as bool? ?? true,
+      timestamp: json['timestamp'] as int?,
+    );
+  }
+
+  static double _toDouble(dynamic v) {
+    if (v == null) return 0.0;
+    if (v is double) return v;
+    if (v is int) return v.toDouble();
+    if (v is String) return double.tryParse(v) ?? 0.0;
+    return 0.0;
+  }
+
+  /// 转换为 k_chart 库的 KLineEntity 格式
+  Map<String, dynamic> toKLineEntityMap() {
+    return {
+      'open': openPrice,
+      'high': highPrice,
+      'low': lowPrice,
+      'close': closePrice,
+      'vol': volume,
+      'amount': closePrice * volume,
+      'time': openTime,
+      'id': openTime,
+    };
+  }
+
+  /// 转换为 k_chart KLineEntity 对象
+  dynamic toKLineEntity() {
+    // k_chart KLineEntity.fromCustom 构造器
+    return null; // placeholder, actual conversion in kline_page
+  }
+
+  /// 从 REST API JSON 转换（历史K线）
+  factory KlineCandle.fromHistoryJson(Map<String, dynamic> json) {
+    return KlineCandle(
+      coinCode: json['coinCode'] as String? ?? '',
+      interval: json['interval'] as String? ?? '1h',
+      openTime: json['openTime'] as int? ?? 0,
+      openPrice: _toDouble(json['openPrice']),
+      highPrice: _toDouble(json['highPrice']),
+      lowPrice: _toDouble(json['lowPrice']),
+      closePrice: _toDouble(json['closePrice']),
+      volume: _toDouble(json['volume']),
+      closeTime: json['closeTime'] as int? ?? 0,
+      isClosed: true,
+    );
+  }
+}
diff --git a/flutter_monisuo/lib/data/services/kline_service.dart b/flutter_monisuo/lib/data/services/kline_service.dart
new file mode 100644
index 0000000..94ad948
--- /dev/null
+++ b/flutter_monisuo/lib/data/services/kline_service.dart
@@ -0,0 +1,72 @@
+import '../../core/constants/api_endpoints.dart';
+import '../../core/network/api_response.dart';
+import '../../core/network/dio_client.dart';
+import '../models/kline_candle.dart';
+
+/// K线 REST API 服务
+class KlineService {
+  final DioClient _client;
+
+  KlineService(this._client);
+
+  /// 获取历史K线数据
+  Future<ApiResponse<List<KlineCandle>>> fetchHistory({
+    required String coinCode,
+    required String interval,
+    int limit = 200,
+    int? before,
+  }) async {
+    final params = <String, dynamic>{
+      'coinCode': coinCode,
+      'interval': interval,
+      'limit': limit,
+    };
+    if (before != null) params['before'] = before;
+
+    final response = await _client.get<Map<String, dynamic>>(
+      ApiEndpoints.klineHistory,
+      queryParameters: params,
+    );
+
+    if (response.success && response.data != null) {
+      final list = response.data!['list'] as List? ?? [];
+      final candles = list
+          .map((e) => KlineCandle.fromHistoryJson(e as Map<String, dynamic>))
+          .toList();
+      return ApiResponse.success(candles, response.message);
+    }
+    return ApiResponse.fail(response.message ?? '获取K线数据失败');
+  }
+
+  /// 获取当前进行中的K线
+  Future<ApiResponse<KlineCandle>> fetchCurrentCandle({
+    required String coinCode,
+    required String interval,
+  }) async {
+    final response = await _client.get<Map<String, dynamic>>(
+      ApiEndpoints.klineCurrent,
+      queryParameters: {'coinCode': coinCode, 'interval': interval},
+    );
+
+    if (response.success && response.data != null) {
+      return ApiResponse.success(
+        KlineCandle.fromJson(response.data!),
+        response.message,
+      );
+    }
+    return ApiResponse.fail(response.message ?? '获取当前K线失败');
+  }
+
+  /// 获取支持的周期列表
+  Future<ApiResponse<List<String>>> fetchIntervals() async {
+    final response = await _client.get<Map<String, dynamic>>(
+      ApiEndpoints.klineIntervals,
+    );
+
+    if (response.success && response.data != null) {
+      final list = response.data!['list'] as List? ?? [];
+      return ApiResponse.success(list.cast<String>(), response.message);
+    }
+    return ApiResponse.fail(response.message ?? '获取周期列表失败');
+  }
+}
diff --git a/flutter_monisuo/lib/data/services/kline_websocket_service.dart b/flutter_monisuo/lib/data/services/kline_websocket_service.dart
new file mode 100644
index 0000000..bdb201c
--- /dev/null
+++ b/flutter_monisuo/lib/data/services/kline_websocket_service.dart
@@ -0,0 +1,135 @@
+import 'dart:async';
+import 'dart:convert';
+import 'package:stomp_dart_client/stomp_dart_client.dart';
+import '../../core/constants/api_endpoints.dart';
+import '../models/kline_candle.dart';
+
+/// K线 WebSocket 服务（STOMP 协议）
+class KlineWebSocketService {
+  StompClient? _stompClient;
+  final Map<String, dynamic> _subscriptions = {};
+  final Map<String, StreamController<KlineCandle>> _controllers = {};
+
+  bool _isConnected = false;
+  bool _isConnecting = false;
+  int _reconnectDelay = 2000; // 初始重连延迟
+  static const int _maxReconnectDelay = 30000;
+
+  /// 订阅某个币种的K线数据
+  Stream<KlineCandle> subscribe(String coinCode) {
+    final key = coinCode.toUpperCase();
+    if (!_controllers.containsKey(key)) {
+      _controllers[key] = StreamController<KlineCandle>.broadcast();
+    }
+    _doSubscribe(key);
+    return _controllers[key]!.stream;
+  }
+
+  /// 取消订阅
+  void unsubscribe(String coinCode) {
+    final key = coinCode.toUpperCase();
+    _subscriptions[key]?.call();
+    _subscriptions.remove(key);
+  }
+
+  /// 连接状态
+  bool get isConnected => _isConnected;
+
+  /// 连接 WebSocket
+  void connect() {
+    if (_isConnecting || _isConnected) return;
+    _isConnecting = true;
+
+    final wsUrl = ApiEndpoints.klineWs;
+
+    _stompClient = StompClient(
+      config: StompConfig(
+        url: wsUrl,
+        onConnect: _onConnect,
+        onDisconnect: _onDisconnect,
+        onStompError: _onError,
+        onWebSocketError: _onError,
+        reconnectDelay: const Duration(milliseconds: 5000),
+        heartbeatIncoming: const Duration(seconds: 20),
+        heartbeatOutgoing: const Duration(seconds: 20),
+      ),
+    );
+
+    _stompClient!.activate();
+  }
+
+  /// 断开连接
+  void disconnect() {
+    _isConnecting = false;
+    _stompClient?.deactivate();
+    _stompClient = null;
+    _isConnected = false;
+    _subscriptions.clear();
+  }
+
+  void _onConnect(StompFrame frame) {
+    _isConnected = true;
+    _isConnecting = false;
+    _reconnectDelay = 2000; // 重置重连延迟
+
+    // 重新订阅所有已注册的币种
+    for (final key in _controllers.keys) {
+      _doSubscribe(key);
+    }
+  }
+
+  void _onDisconnect(StompFrame? frame) {
+    _isConnected = false;
+    _isConnecting = false;
+    _scheduleReconnect();
+  }
+
+  void _onError(dynamic error) {
+    _isConnected = false;
+    _isConnecting = false;
+    _scheduleReconnect();
+  }
+
+  void _scheduleReconnect() {
+    Future.delayed(Duration(milliseconds: _reconnectDelay), () {
+      if (!_isConnected && !_isConnecting) {
+        _reconnectDelay = (_reconnectDelay * 2).clamp(2000, _maxReconnectDelay);
+        connect();
+      }
+    });
+  }
+
+  void _doSubscribe(String coinCode) {
+    if (_stompClient == null || !_isConnected) {
+      connect(); // 触发连接，连接成功后会自动重新订阅
+      return;
+    }
+
+    // 避免重复订阅
+    if (_subscriptions.containsKey(coinCode)) return;
+
+    final dest = '/topic/kline/$coinCode';
+    final sub = _stompClient!.subscribe(
+      destination: dest,
+      callback: (StompFrame frame) {
+        if (frame.body != null) {
+          try {
+            final json = jsonDecode(frame.body!) as Map<String, dynamic>;
+            final candle = KlineCandle.fromJson(json);
+            _controllers[coinCode]?.add(candle);
+          } catch (_) {}
+        }
+      },
+    );
+    _subscriptions[coinCode] = sub;
+  }
+
+  /// 释放资源
+  void dispose() {
+    disconnect();
+    for (final controller in _controllers.values) {
+      controller.close();
+    }
+    _controllers.clear();
+  }
+}
diff --git a/flutter_monisuo/lib/providers/kline_provider.dart b/flutter_monisuo/lib/providers/kline_provider.dart
new file mode 100644
index 0000000..41748c2
--- /dev/null
+++ b/flutter_monisuo/lib/providers/kline_provider.dart
@@ -0,0 +1,183 @@
+import 'dart:async';
+import 'package:flutter/material.dart';
+import '../data/models/kline_candle.dart';
+import '../data/services/kline_service.dart';
+import '../data/services/kline_websocket_service.dart';
+
+/// K线状态管理
+class KlineProvider extends ChangeNotifier {
+  final KlineService _klineService;
+  final KlineWebSocketService _wsService;
+
+  KlineProvider(this._klineService, this._wsService);
+
+  List<KlineCandle> _candles = [];
+  KlineCandle? _currentCandle;
+  String _interval = '1h';
+  String _coinCode = '';
+  bool _isLoading = false;
+  bool _isLoadingMore = false;
+  bool _isConnected = false;
+  String? _error;
+
+  StreamSubscription<KlineCandle>? _wsSubscription;
+  Timer? _pollingTimer;
+
+  // Getters
+  List<KlineCandle> get candles => _candles;
+  KlineCandle? get currentCandle => _currentCandle;
+  String get interval => _interval;
+  String get coinCode => _coinCode;
+  bool get isLoading => _isLoading;
+  bool get isLoadingMore => _isLoadingMore;
+  bool get isConnected => _isConnected;
+  String? get error => _error;
+
+  /// 加载某个币种的K线数据
+  Future<void> loadCoin(String coinCode, {String? interval}) async {
+    _coinCode = coinCode;
+    if (interval != null) _interval = interval;
+    _candles = [];
+    _currentCandle = null;
+    _error = null;
+    _isLoading = true;
+    notifyListeners();
+
+    try {
+      // 1. 获取历史K线
+      final response = await _klineService.fetchHistory(
+        coinCode: _coinCode,
+        interval: _interval,
+        limit: 200,
+      );
+      if (response.success && response.data != null) {
+        _candles = response.data!;
+      }
+
+      // 2. 获取当前K线
+      final currentResponse = await _klineService.fetchCurrentCandle(
+        coinCode: _coinCode,
+        interval: _interval,
+      );
+      if (currentResponse.success && currentResponse.data != null) {
+        _currentCandle = currentResponse.data;
+      }
+
+      // 3. 连接 WebSocket
+      _connectWebSocket();
+
+      _isLoading = false;
+      notifyListeners();
+    } catch (e) {
+      _error = '加载K线数据失败: $e';
+      _isLoading = false;
+      notifyListeners();
+    }
+  }
+
+  /// 切换周期
+  Future<void> changeInterval(String newInterval) async {
+    if (newInterval == _interval) return;
+
+    _interval = newInterval;
+    _candles = [];
+    _currentCandle = null;
+
+    // 重新加载
+    await loadCoin(_coinCode, interval: newInterval);
+  }
+
+  /// 加载更多历史数据（分页）
+  Future<void> loadMore() async {
+    if (_isLoadingMore || _candles.isEmpty) return;
+    _isLoadingMore = true;
+    notifyListeners();
+
+    try {
+      final oldestTime = _candles.first.closeTime;
+      final response = await _klineService.fetchHistory(
+        coinCode: _coinCode,
+        interval: _interval,
+        limit: 200,
+        before: oldestTime,
+      );
+      if (response.success && response.data != null) {
+        _candles = [...response.data!, ..._candles];
+      }
+    } catch (_) {}
+
+    _isLoadingMore = false;
+    notifyListeners();
+  }
+
+  void _connectWebSocket() {
+    // 取消之前的订阅
+    _wsSubscription?.cancel();
+    _wsService.unsubscribe(_coinCode);
+
+    // 订阅新币种
+    _wsService.connect();
+    _wsSubscription = _wsService.subscribe(_coinCode).listen(
+      _onTick,
+      onError: (_) => _startPolling(),
+      onDone: () => _startPolling(),
+    );
+
+    _isConnected = _wsService.isConnected;
+    notifyListeners();
+  }
+
+  void _onTick(KlineCandle tick) {
+    if (tick.interval != _interval) return;
+
+    _isConnected = true;
+
+    if (tick.isClosed) {
+      // 收盘 tick → 添加到历史列表
+      _candles.add(tick);
+      _currentCandle = null;
+
+      // 停止轮询（如果之前在轮询）
+      _pollingTimer?.cancel();
+      _pollingTimer = null;
+    } else {
+      // 进行中的 tick → 更新当前K线
+      _currentCandle = tick;
+    }
+
+    notifyListeners();
+  }
+
+  /// WebSocket 断连时降级为 HTTP 轮询
+  void _startPolling() {
+    _isConnected = false;
+    notifyListeners();
+
+    _pollingTimer?.cancel();
+    _pollingTimer = Timer.periodic(
+      const Duration(seconds: 5),
+      (_) => _pollCurrentCandle(),
+    );
+  }
+
+  Future<void> _pollCurrentCandle() async {
+    try {
+      final response = await _klineService.fetchCurrentCandle(
+        coinCode: _coinCode,
+        interval: _interval,
+      );
+      if (response.success && response.data != null) {
+        _currentCandle = response.data;
+        notifyListeners();
+      }
+    } catch (_) {}
+  }
+
+  @override
+  void dispose() {
+    _wsSubscription?.cancel();
+    _wsService.unsubscribe(_coinCode);
+    _pollingTimer?.cancel();
+    super.dispose();
+  }
+}
diff --git a/flutter_monisuo/lib/ui/pages/kline/components/interval_selector.dart b/flutter_monisuo/lib/ui/pages/kline/components/interval_selector.dart
new file mode 100644
index 0000000..cd606e2
--- /dev/null
+++ b/flutter_monisuo/lib/ui/pages/kline/components/interval_selector.dart
@@ -0,0 +1,56 @@
+import 'package:flutter/material.dart';
+import '../../../../core/theme/app_theme.dart';
+import '../../../../core/theme/app_theme_extension.dart';
+
+/// K线周期选择器：15m / 1h / 4h / 1d / 1M
+class IntervalSelector extends StatelessWidget {
+  final String selected;
+  final ValueChanged<String> onChanged;
+
+  static const List<MapEntry<String, String>> intervals = [
+    MapEntry('15m', '15分'),
+    MapEntry('1h', '1时'),
+    MapEntry('4h', '4时'),
+    MapEntry('1d', '日线'),
+    MapEntry('1M', '月线'),
+  ];
+
+  const IntervalSelector({
+    super.key,
+    required this.selected,
+    required this.onChanged,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return Row(
+      children: intervals.map((e) {
+        final isSelected = e.key == selected;
+        return Expanded(
+          child: GestureDetector(
+            onTap: () => onChanged(e.key),
+            child: Container(
+              padding: const EdgeInsets.symmetric(vertical: 8),
+              decoration: BoxDecoration(
+                color: isSelected
+                    ? context.colors.primary.withValues(alpha: 0.15)
+                    : Colors.transparent,
+                borderRadius: BorderRadius.circular(6),
+              ),
+              alignment: Alignment.center,
+              child: Text(
+                e.value,
+                style: AppTextStyles.bodyMedium(context).copyWith(
+                  color: isSelected
+                      ? context.colors.primary
+                      : context.appColors.onSurfaceMuted,
+                  fontWeight: isSelected ? FontWeight.w600 : FontWeight.w400,
+                ),
+              ),
+            ),
+          ),
+        );
+      }).toList(),
+    );
+  }
+}
diff --git a/flutter_monisuo/lib/ui/pages/kline/components/kline_stats_bar.dart b/flutter_monisuo/lib/ui/pages/kline/components/kline_stats_bar.dart
new file mode 100644
index 0000000..639ec1a
--- /dev/null
+++ b/flutter_monisuo/lib/ui/pages/kline/components/kline_stats_bar.dart
@@ -0,0 +1,77 @@
+import 'package:flutter/material.dart';
+import '../../../../core/theme/app_theme.dart';
+import '../../../../core/theme/app_theme_extension.dart';
+import '../../../../data/models/kline_candle.dart';
+
+/// K线 OHLC 信息栏
+class KlineStatsBar extends StatelessWidget {
+  final KlineCandle? candle;
+
+  const KlineStatsBar({super.key, this.candle});
+
+  @override
+  Widget build(BuildContext context) {
+    if (candle == null) return const SizedBox.shrink();
+
+    final c = candle!;
+    final change = c.closePrice - c.openPrice;
+    final changePct = c.openPrice > 0 ? (change / c.openPrice * 100) : 0.0;
+    final isUp = change >= 0;
+    final color = isUp ? context.appColors.up : context.appColors.down;
+
+    return Container(
+      padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 6),
+      child: Row(
+        children: [
+          _statItem(context, '开', _fmt(c.openPrice), color),
+          const SizedBox(width: 12),
+          _statItem(context, '高', _fmt(c.highPrice), color),
+          const SizedBox(width: 12),
+          _statItem(context, '低', _fmt(c.lowPrice), color),
+          const SizedBox(width: 12),
+          _statItem(context, '收', _fmt(c.closePrice), color),
+          const SizedBox(width: 12),
+          _statItem(context, '量', _fmtVol(c.volume), color),
+          const Spacer(),
+          Text(
+            '${isUp ? '+' : ''}${changePct.toStringAsFixed(2)}%',
+            style: AppTextStyles.labelLarge(context).copyWith(
+              color: color,
+              fontWeight: FontWeight.bold,
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
+  Widget _statItem(BuildContext context, String label, String value, Color color) {
+    return Row(
+      mainAxisSize: MainAxisSize.min,
+      children: [
+        Text(label,
+            style: AppTextStyles.bodySmall(context).copyWith(
+              color: context.appColors.onSurfaceMuted,
+            )),
+        const SizedBox(width: 2),
+        Text(value,
+            style: AppTextStyles.bodySmall(context).copyWith(
+              color: color,
+              fontWeight: FontWeight.w500,
+            )),
+      ],
+    );
+  }
+
+  String _fmt(double v) {
+    if (v >= 1000) return v.toStringAsFixed(2);
+    if (v >= 1) return v.toStringAsFixed(4);
+    return v.toStringAsFixed(6);
+  }
+
+  String _fmtVol(double v) {
+    if (v >= 1000000) return '${(v / 1000000).toStringAsFixed(1)}M';
+    if (v >= 1000) return '${(v / 1000).toStringAsFixed(1)}K';
+    return v.toStringAsFixed(0);
+  }
+}
diff --git a/flutter_monisuo/lib/ui/pages/kline/kline_page.dart b/flutter_monisuo/lib/ui/pages/kline/kline_page.dart
new file mode 100644
index 0000000..0ee245c
--- /dev/null
+++ b/flutter_monisuo/lib/ui/pages/kline/kline_page.dart
@@ -0,0 +1,280 @@
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import 'package:shadcn_ui/shadcn_ui.dart';
+import 'package:k_chart/flutter_k_chart.dart';
+import '../../../core/theme/app_theme.dart';
+import '../../../core/theme/app_theme_extension.dart';
+import '../../../core/theme/app_spacing.dart';
+import '../../../data/models/coin.dart';
+import '../../../providers/kline_provider.dart';
+import '../main/main_page.dart';
+import 'components/interval_selector.dart';
+import 'components/kline_stats_bar.dart';
+
+/// K线图表页面
+class KlinePage extends StatefulWidget {
+  final Coin coin;
+
+  const KlinePage({super.key, required this.coin});
+
+  @override
+  State<KlinePage> createState() => _KlinePageState();
+}
+
+class _KlinePageState extends State<KlinePage> {
+  List<KLineEntity>? _kLineEntities;
+  final ChartColors _chartColors = ChartColors();
+  final ChartStyle _chartStyle = ChartStyle();
+
+  @override
+  void initState() {
+    super.initState();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final isDark = context.isDark;
+    _chartColors.bgColor = [isDark ? const Color(0xff1a1a2e) : Colors.white, isDark ? const Color(0xff1a1a2e) : Colors.white];
+    _chartColors.gridColor = isDark ? const Color(0xff2d2d44) : const Color(0xffe0e0e0);
+    _chartColors.upColor = context.appColors.up;
+    _chartColors.dnColor = context.appColors.down;
+
+    return Scaffold(
+      backgroundColor: context.colors.background,
+      appBar: AppBar(
+        backgroundColor: context.colors.surface,
+        elevation: 0,
+        scrolledUnderElevation: 0,
+        leading: IconButton(
+          icon: Icon(LucideIcons.arrowLeft, color: context.colors.onSurface),
+          onPressed: () => Navigator.of(context).pop(),
+        ),
+        title: Row(
+          children: [
+            Text(widget.coin.code,
+                style: AppTextStyles.headlineLarge(context).copyWith(
+                  fontWeight: FontWeight.bold,
+                )),
+            const SizedBox(width: 8),
+            Text(widget.coin.formattedPrice,
+                style: AppTextStyles.headlineMedium(context).copyWith(
+                  color: context.colors.primary,
+                )),
+            const SizedBox(width: 6),
+            _ChangeBadge(coin: widget.coin),
+          ],
+        ),
+      ),
+      body: Consumer<KlineProvider>(
+        builder: (context, provider, _) {
+          // 数据转换
+          _updateEntities(provider);
+
+          return Column(
+            children: [
+              // 周期选择器
+              Padding(
+                padding: const EdgeInsets.symmetric(
+                  horizontal: AppSpacing.md,
+                  vertical: AppSpacing.sm,
+                ),
+                child: IntervalSelector(
+                  selected: provider.interval,
+                  onChanged: (v) => provider.changeInterval(v),
+                ),
+              ),
+              // OHLC 信息栏
+              KlineStatsBar(candle: provider.currentCandle),
+              const Divider(height: 1),
+              // K线图表
+              Expanded(
+                child: _buildChart(provider),
+              ),
+              // 底部操作栏
+              _BottomActionBar(coin: widget.coin),
+            ],
+          );
+        },
+      ),
+    );
+  }
+
+  void _updateEntities(KlineProvider provider) {
+    final allCandles = [...provider.candles];
+    if (provider.currentCandle != null) {
+      allCandles.add(provider.currentCandle!);
+    }
+
+    if (allCandles.isEmpty) {
+      _kLineEntities = null;
+      return;
+    }
+
+    _kLineEntities = allCandles.map((c) {
+      return KLineEntity.fromJson({
+        'open': c.openPrice,
+        'high': c.highPrice,
+        'low': c.lowPrice,
+        'close': c.closePrice,
+        'vol': c.volume,
+        'amount': c.closePrice * c.volume,
+        'time': c.openTime,
+        'id': c.openTime,
+      });
+    }).toList();
+
+    DataUtil.calculate(_kLineEntities!);
+  }
+
+  Widget _buildChart(KlineProvider provider) {
+    if (provider.isLoading) {
+      return const Center(child: CircularProgressIndicator());
+    }
+
+    if (_kLineEntities == null || _kLineEntities!.isEmpty) {
+      return Center(
+        child: Column(
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: [
+            Icon(LucideIcons.chartNoAxesColumn,
+                size: 48,
+                color: context.appColors.onSurfaceMuted.withValues(alpha: 0.4)),
+            const SizedBox(height: AppSpacing.md),
+            Text('暂无K线数据',
+                style: AppTextStyles.headlineMedium(context).copyWith(
+                  color: context.appColors.onSurfaceMuted,
+                )),
+            const SizedBox(height: AppSpacing.sm),
+          ],
+        ),
+      );
+    }
+
+    return Stack(
+      children: [
+        SizedBox(
+          height: double.infinity,
+          width: double.infinity,
+          child: KChartWidget(
+            _kLineEntities,
+            _chartStyle,
+            _chartColors,
+            isLine: false,
+            isTrendLine: false,
+            mainState: MainState.MA,
+            volHidden: false,
+            secondaryState: SecondaryState.MACD,
+            fixedLength: 4,
+            timeFormat: TimeFormat.YEAR_MONTH_DAY,
+            showNowPrice: true,
+            hideGrid: false,
+            isTapShowInfoDialog: false,
+            onSecondaryTap: () {},
+          ),
+        ),
+      ],
+    );
+  }
+}
+
+/// 涨跌标签
+class _ChangeBadge extends StatelessWidget {
+  final Coin coin;
+  const _ChangeBadge({required this.coin});
+
+  @override
+  Widget build(BuildContext context) {
+    final isUp = coin.isUp;
+    final color = isUp ? context.appColors.up : context.appColors.down;
+    return Container(
+      padding: const EdgeInsets.symmetric(horizontal: 6, vertical: 2),
+      decoration: BoxDecoration(
+        color: color.withValues(alpha: 0.1),
+        borderRadius: BorderRadius.circular(4),
+      ),
+      child: Text(
+        coin.formattedChange,
+        style: AppTextStyles.bodySmall(context).copyWith(
+          color: color,
+          fontWeight: FontWeight.w600,
+        ),
+      ),
+    );
+  }
+}
+
+/// 底部交易操作栏
+class _BottomActionBar extends StatelessWidget {
+  final Coin coin;
+  const _BottomActionBar({required this.coin});
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      padding: const EdgeInsets.fromLTRB(
+        AppSpacing.lg, AppSpacing.sm, AppSpacing.lg, AppSpacing.lg,
+      ),
+      decoration: BoxDecoration(
+        color: context.colors.surface,
+        border: Border(
+          top: BorderSide(
+            color: context.colors.outlineVariant.withValues(alpha: 0.2),
+          ),
+        ),
+      ),
+      child: Row(
+        children: [
+          Expanded(
+            child: SizedBox(
+              height: 44,
+              child: ElevatedButton(
+                onPressed: () => _navigateToTrade(context, isBuy: true),
+                style: ElevatedButton.styleFrom(
+                  backgroundColor: context.appColors.up,
+                  foregroundColor: Colors.white,
+                  elevation: 0,
+                  shape: RoundedRectangleBorder(
+                    borderRadius: BorderRadius.circular(AppRadius.lg),
+                  ),
+                ),
+                child: Text('买入',
+                    style: AppTextStyles.headlineMedium(context).copyWith(
+                      color: Colors.white,
+                      fontWeight: FontWeight.bold,
+                    )),
+              ),
+            ),
+          ),
+          const SizedBox(width: AppSpacing.md),
+          Expanded(
+            child: SizedBox(
+              height: 44,
+              child: ElevatedButton(
+                onPressed: () => _navigateToTrade(context, isBuy: false),
+                style: ElevatedButton.styleFrom(
+                  backgroundColor: context.appColors.down,
+                  foregroundColor: Colors.white,
+                  elevation: 0,
+                  shape: RoundedRectangleBorder(
+                    borderRadius: BorderRadius.circular(AppRadius.lg),
+                  ),
+                ),
+                child: Text('卖出',
+                    style: AppTextStyles.headlineMedium(context).copyWith(
+                      color: Colors.white,
+                      fontWeight: FontWeight.bold,
+                    )),
+              ),
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
+  void _navigateToTrade(BuildContext context, {required bool isBuy}) {
+    Navigator.of(context).pop();
+    final mainState = context.findAncestorStateOfType<MainPageState>();
+    mainState?.switchToTrade(coin.code);
+  }
+}
diff --git a/monisuo-admin/src/pages/monisuo/kline-config.vue b/monisuo-admin/src/pages/monisuo/kline-config.vue
new file mode 100644
index 0000000..c3e30d8
--- /dev/null
+++ b/monisuo-admin/src/pages/monisuo/kline-config.vue
@@ -0,0 +1,324 @@
+<script setup lang="ts">
+import { ref, onMounted, computed, watch } from 'vue'
+import { toast } from 'vue-sonner'
+import {
+  getKlineConfigs,
+  saveKlineConfig,
+  getKlinePreview,
+  type KlineConfig,
+} from '../../services/api/monisuo-kline.api.ts'
+import VChart from 'vue-echarts'
+import { use } from 'echarts/core'
+import { CandlestickChart } from 'echarts/charts'
+import { GridComponent, TooltipComponent, LegendComponent, DataZoomComponent } from 'echarts/components'
+import { CanvasRenderer } from 'echarts/renderers'
+
+use([CandlestickChart, GridComponent, TooltipComponent, LegendComponent, DataZoomComponent, CanvasRenderer])
+
+// ==================== State ====================
+const configs = ref<KlineConfig[]>([])
+const isLoading = ref(false)
+const editingConfig = ref<KlineConfig | null>(null)
+const showEditDialog = ref(false)
+const showPreviewDialog = ref(false)
+const previewCoinCode = ref('')
+const previewInterval = ref('1h')
+const previewData = ref<any[]>([])
+const previewVolumes = ref<number[]>([])
+const previewDates = ref<string[]>([])
+
+// ==================== Load ====================
+async function loadConfigs() {
+  isLoading.value = true
+  try {
+    configs.value = await getKlineConfigs()
+  }
+  catch (e: any) {
+    toast.error(`加载失败: ${e.message}`)
+  }
+  finally {
+    isLoading.value = false
+  }
+}
+
+onMounted(loadConfigs)
+
+// ==================== Edit ====================
+function openEdit(config: KlineConfig) {
+  editingConfig.value = { ...config }
+  showEditDialog.value = true
+}
+
+async function saveEdit() {
+  if (!editingConfig.value) return
+  try {
+    await saveKlineConfig({
+      coinCode: editingConfig.value.coinCode,
+      tradeStartTime: editingConfig.value.tradeStartTime,
+      tradeEndTime: editingConfig.value.tradeEndTime,
+      priceMin: editingConfig.value.priceMin,
+      priceMax: editingConfig.value.priceMax,
+      simulationEnabled: editingConfig.value.simulationEnabled,
+    })
+    toast.success('保存成功')
+    showEditDialog.value = false
+    loadConfigs()
+  }
+  catch (e: any) {
+    toast.error(`保存失败: ${e.message}`)
+  }
+}
+
+function toggleSimulation(config: KlineConfig) {
+  const newConfig = { ...config }
+  newConfig.simulationEnabled = config.simulationEnabled === 1 ? 0 : 1
+  saveKlineConfig({
+    coinCode: newConfig.coinCode,
+    simulationEnabled: newConfig.simulationEnabled,
+  }).then(() => {
+    toast.success(newConfig.simulationEnabled ? '已启用模拟' : '已关闭模拟')
+    loadConfigs()
+  }).catch((e: any) => {
+    toast.error(`操作失败: ${e.message}`)
+  })
+}
+
+// ==================== Preview ====================
+async function openPreview(config: KlineConfig) {
+  previewCoinCode.value = config.coinCode
+  previewInterval.value = '1h'
+  showPreviewDialog.value = true
+  await loadPreviewData()
+}
+
+async function loadPreviewData() {
+  try {
+    const data = await getKlinePreview(previewCoinCode.value, previewInterval.value, 100)
+    previewData.value = data.map((d) => [d.openPrice, d.closePrice, d.lowPrice, d.highPrice])
+    previewVolumes.value = data.map(d => d.volume)
+    previewDates.value = data.map((d) => {
+      const date = new Date(d.openTime)
+      return `${date.getMonth() + 1}/${date.getDate()} ${date.getHours()}:${String(date.getMinutes()).padStart(2, '0')}`
+    })
+  }
+  catch {
+    previewData.value = []
+  }
+}
+
+watch(previewInterval, loadPreviewData)
+
+const chartOption = computed(() => ({
+  animation: false,
+  tooltip: { trigger: 'axis', axisPointer: { type: 'cross' } },
+  grid: [
+    { left: '10%', right: '5%', top: '5%', height: '55%' },
+    { left: '10%', right: '5%', top: '68%', height: '20%' },
+  ],
+  xAxis: [
+    { type: 'category', data: previewDates.value, gridIndex: 0, axisLabel: { show: false } },
+    { type: 'category', data: previewDates.value, gridIndex: 1 },
+  ],
+  yAxis: [
+    { type: 'value', gridIndex: 0, scale: true },
+    { type: 'value', gridIndex: 1, scale: true },
+  ],
+  dataZoom: [
+    { type: 'inside', xAxisIndex: [0, 1], start: 50, end: 100 },
+  ],
+  series: [
+    {
+      name: 'K线',
+      type: 'candlestick',
+      data: previewData.value,
+      xAxisIndex: 0,
+      yAxisIndex: 0,
+      itemStyle: {
+        color: '#ef5350',
+        color0: '#26a69a',
+        borderColor: '#ef5350',
+        borderColor0: '#26a69a',
+      },
+    },
+    {
+      name: '成交量',
+      type: 'bar',
+      data: previewVolumes.value,
+      xAxisIndex: 1,
+      yAxisIndex: 1,
+      itemStyle: { color: '#7986cb' },
+    },
+  ],
+}))
+</script>
+
+<template>
+  <div class="p-6 space-y-6">
+    <div>
+      <h1 class="text-2xl font-bold">K线配置</h1>
+      <p class="text-muted-foreground mt-1">管理币种K线模拟参数，配置交易时段和价格区间</p>
+    </div>
+
+    <!-- 币种配置表格 -->
+    <div class="border rounded-lg">
+      <table class="w-full">
+        <thead class="bg-muted/50">
+          <tr>
+            <th class="px-4 py-3 text-left text-sm font-medium text-muted-foreground">币种</th>
+            <th class="px-4 py-3 text-left text-sm font-medium text-muted-foreground">当前价格</th>
+            <th class="px-4 py-3 text-center text-sm font-medium text-muted-foreground">模拟状态</th>
+            <th class="px-4 py-3 text-center text-sm font-medium text-muted-foreground">交易时段</th>
+            <th class="px-4 py-3 text-center text-sm font-medium text-muted-foreground">价格区间</th>
+            <th class="px-4 py-3 text-center text-sm font-medium text-muted-foreground">操作</th>
+          </tr>
+        </thead>
+        <tbody>
+          <tr v-for="config in configs" :key="config.coinCode" class="border-t hover:bg-muted/30">
+            <td class="px-4 py-3">
+              <div class="font-medium">{{ config.coinCode }}</div>
+              <div class="text-xs text-muted-foreground">{{ config.coinName }}</div>
+            </td>
+            <td class="px-4 py-3 font-mono">{{ config.currentPrice?.toFixed(4) ?? '-' }}</td>
+            <td class="px-4 py-3 text-center">
+              <button
+                class="relative inline-flex h-6 w-11 items-center rounded-full transition-colors"
+                :class="config.simulationEnabled ? 'bg-primary' : 'bg-muted'"
+                @click="toggleSimulation(config)"
+              >
+                <span
+                  class="inline-block h-4 w-4 rounded-full bg-white shadow transition-transform"
+                  :class="config.simulationEnabled ? 'translate-x-6' : 'translate-x-1'"
+                />
+              </button>
+            </td>
+            <td class="px-4 py-3 text-center text-sm">
+              {{ config.tradeStartTime ?? '09:00' }} - {{ config.tradeEndTime ?? '23:00' }}
+            </td>
+            <td class="px-4 py-3 text-center text-sm font-mono">
+              <template v-if="config.priceMin != null && config.priceMax != null">
+                {{ config.priceMin }} ~ {{ config.priceMax }}
+              </template>
+              <template v-else>-</template>
+            </td>
+            <td class="px-4 py-3 text-center">
+              <div class="flex items-center justify-center gap-2">
+                <button
+                  class="text-sm text-primary hover:underline"
+                  @click="openEdit(config)"
+                >
+                  配置
+                </button>
+                <button
+                  class="text-sm text-primary hover:underline"
+                  @click="openPreview(config)"
+                >
+                  预览
+                </button>
+              </div>
+            </td>
+          </tr>
+          <tr v-if="configs.length === 0">
+            <td colspan="6" class="px-4 py-8 text-center text-muted-foreground">
+              暂无币种数据
+            </td>
+          </tr>
+        </tbody>
+      </table>
+    </div>
+
+    <!-- 编辑弹窗 -->
+    <UiDialog v-model:open="showEditDialog">
+      <UiDialogContent class="max-w-md">
+        <UiDialogHeader>
+          <UiDialogTitle>K线配置 — {{ editingConfig?.coinCode }}</UiDialogTitle>
+        </UiDialogHeader>
+        <div v-if="editingConfig" class="space-y-4 py-4">
+          <div class="flex items-center justify-between">
+            <label class="text-sm font-medium">启用模拟</label>
+            <button
+              class="relative inline-flex h-6 w-11 items-center rounded-full transition-colors"
+              :class="editingConfig.simulationEnabled ? 'bg-primary' : 'bg-muted'"
+              @click="editingConfig.simulationEnabled = editingConfig.simulationEnabled === 1 ? 0 : 1"
+            >
+              <span
+                class="inline-block h-4 w-4 rounded-full bg-white shadow transition-transform"
+                :class="editingConfig.simulationEnabled ? 'translate-x-6' : 'translate-x-1'"
+              />
+            </button>
+          </div>
+
+          <div class="grid grid-cols-2 gap-4">
+            <div>
+              <label class="text-sm font-medium">交易开始时间</label>
+              <input
+                v-model="editingConfig.tradeStartTime"
+                type="time"
+                class="mt-1 w-full rounded-md border px-3 py-2 text-sm"
+              />
+            </div>
+            <div>
+              <label class="text-sm font-medium">交易结束时间</label>
+              <input
+                v-model="editingConfig.tradeEndTime"
+                type="time"
+                class="mt-1 w-full rounded-md border px-3 py-2 text-sm"
+              />
+            </div>
+          </div>
+
+          <div class="grid grid-cols-2 gap-4">
+            <div>
+              <label class="text-sm font-medium">最低价</label>
+              <input
+                v-model.number="editingConfig.priceMin"
+                type="number"
+                step="0.0001"
+                min="0"
+                class="mt-1 w-full rounded-md border px-3 py-2 text-sm"
+                placeholder="最低价"
+              />
+            </div>
+            <div>
+              <label class="text-sm font-medium">最高价</label>
+              <input
+                v-model.number="editingConfig.priceMax"
+                type="number"
+                step="0.0001"
+                min="0"
+                class="mt-1 w-full rounded-md border px-3 py-2 text-sm"
+                placeholder="最高价"
+              />
+            </div>
+          </div>
+        </div>
+        <UiDialogFooter>
+          <UiButton variant="outline" @click="showEditDialog = false">取消</UiButton>
+          <UiButton @click="saveEdit">保存</UiButton>
+        </UiDialogFooter>
+      </UiDialogContent>
+    </UiDialog>
+
+    <!-- K线预览弹窗 -->
+    <UiDialog v-model:open="showPreviewDialog">
+      <UiDialogContent class="max-w-3xl max-h-[80vh]">
+        <UiDialogHeader>
+          <UiDialogTitle>K线预览 — {{ previewCoinCode }}</UiDialogTitle>
+        </UiDialogHeader>
+        <div class="space-y-3">
+          <select
+            v-model="previewInterval"
+            class="rounded-md border px-3 py-1.5 text-sm"
+          >
+            <option value="15m">15分钟</option>
+            <option value="1h">1小时</option>
+            <option value="4h">4小时</option>
+            <option value="1d">日线</option>
+            <option value="1M">月线</option>
+          </select>
+          <VChart v-if="previewData.length" :option="chartOption" autoresize style="height: 400px" />
+          <div v-else class="py-8 text-center text-muted-foreground">暂无数据</div>
+        </div>
+      </UiDialogContent>
+    </UiDialog>
+  </div>
+</template>
diff --git a/monisuo-admin/src/services/api/monisuo-kline.api.ts b/monisuo-admin/src/services/api/monisuo-kline.api.ts
new file mode 100644
index 0000000..0983b18
--- /dev/null
+++ b/monisuo-admin/src/services/api/monisuo-kline.api.ts
@@ -0,0 +1,71 @@
+import { useAxios } from '../../composables/use-axios'
+
+// ==================== Types ====================
+
+export interface KlineConfig {
+  coinId: number
+  coinCode: string
+  coinName: string
+  simulationEnabled: number // 0 or 1
+  tradeStartTime: string // HH:mm
+  tradeEndTime: string // HH:mm
+  priceMin: number
+  priceMax: number
+  currentPrice: number
+  priceType: number
+}
+
+export interface KlineConfigUpdate {
+  coinCode: string
+  tradeStartTime?: string
+  tradeEndTime?: string
+  priceMin?: number
+  priceMax?: number
+  simulationEnabled?: number
+}
+
+export interface KlineCandle {
+  coinCode: string
+  interval: string
+  openTime: number
+  openPrice: number
+  highPrice: number
+  lowPrice: number
+  closePrice: number
+  volume: number
+  closeTime: number
+}
+
+// ==================== API Functions ====================
+
+/** 获取所有币种K线配置 */
+export async function getKlineConfigs(): Promise<KlineConfig[]> {
+  const { axiosInstance } = useAxios()
+  const { data } = await axiosInstance.get('/admin/kline/config')
+  const list: any[] = (data as any)?.data ?? []
+  return list.map(item => ({
+    coinId: item.id,
+    coinCode: item.code,
+    coinName: item.name,
+    simulationEnabled: item.simulationEnabled ?? 0,
+    tradeStartTime: item.tradeStartTime,
+    tradeEndTime: item.tradeEndTime,
+    priceMin: item.priceMin,
+    priceMax: item.priceMax,
+    currentPrice: item.price,
+    priceType: item.priceType,
+  }))
+}
+
+/** 保存K线配置 */
+export async function saveKlineConfig(config: KlineConfigUpdate): Promise<void> {
+  const { axiosInstance } = useAxios()
+  await axiosInstance.post('/admin/kline/config', config)
+}
+
+/** 获取K线预览数据（用于 echarts） */
+export async function getKlinePreview(coinCode: string, interval: string = '1h', limit: number = 100): Promise<KlineCandle[]> {
+  const { axiosInstance } = useAxios()
+  const { data } = await axiosInstance.get('/admin/kline/preview', { params: { coinCode, interval, limit } })
+  return (data as any)?.data ?? []
+}
diff --git a/sql/patch_coin_kline.sql b/sql/patch_coin_kline.sql
new file mode 100644
index 0000000..0d2886b
--- /dev/null
+++ b/sql/patch_coin_kline.sql
@@ -0,0 +1,28 @@
+-- =============================================
+-- K线模拟功能 — 数据库补丁
+-- =============================================
+
+-- 1. 新建 coin_kline 表（K线蜡烛数据）
+CREATE TABLE IF NOT EXISTS `coin_kline` (
+  `id` bigint(20) NOT NULL AUTO_INCREMENT,
+  `coin_code` varchar(20) NOT NULL COMMENT '币种代码',
+  `interval` varchar(5) NOT NULL COMMENT '周期: 15m/1h/4h/1d/1M',
+  `open_time` bigint(20) NOT NULL COMMENT '开盘时间戳(ms)',
+  `open_price` decimal(20,8) NOT NULL,
+  `high_price` decimal(20,8) NOT NULL,
+  `low_price` decimal(20,8) NOT NULL,
+  `close_price` decimal(20,8) NOT NULL,
+  `volume` decimal(20,4) DEFAULT 0 COMMENT '模拟成交量',
+  `close_time` bigint(20) NOT NULL COMMENT '收盘时间戳(ms)',
+  `create_time` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  PRIMARY KEY (`id`),
+  UNIQUE KEY `uk_coin_interval_open` (`coin_code`, `interval`, `open_time`),
+  KEY `idx_coin_interval_close` (`coin_code`, `interval`, `close_time`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='K线蜡烛数据';
+
+-- 2. coin 表新增K线配置字段
+ALTER TABLE `coin`
+  ADD COLUMN `trade_start_time` varchar(5) DEFAULT '09:00' COMMENT '交易开始时间 HH:mm',
+  ADD COLUMN `trade_end_time` varchar(5) DEFAULT '23:00' COMMENT '交易结束时间 HH:mm',
+  ADD COLUMN `max_change_percent` decimal(5,2) DEFAULT 5.00 COMMENT '每日最大涨跌幅(%)',
+  ADD COLUMN `simulation_enabled` tinyint(1) DEFAULT 0 COMMENT '1=启用K线模拟';
diff --git a/src/main/java/com/it/rattan/monisuo/config/RedisConfig.java b/src/main/java/com/it/rattan/monisuo/config/RedisConfig.java
new file mode 100644
index 0000000..4676881
--- /dev/null
+++ b/src/main/java/com/it/rattan/monisuo/config/RedisConfig.java
@@ -0,0 +1,42 @@
+package com.it.rattan.monisuo.config;
+
+import com.fasterxml.jackson.annotation.JsonAutoDetect;
+import com.fasterxml.jackson.annotation.PropertyAccessor;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.jsontype.impl.LaissezFaireSubTypeValidator;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.data.redis.connection.RedisConnectionFactory;
+import org.springframework.data.redis.core.RedisTemplate;
+import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
+import org.springframework.data.redis.serializer.StringRedisSerializer;
+
+/**
+ * Redis 配置
+ */
+@Configuration
+public class RedisConfig {
+
+    @Bean
+    public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory factory) {
+        RedisTemplate<String, Object> template = new RedisTemplate<>();
+        template.setConnectionFactory(factory);
+
+        ObjectMapper om = new ObjectMapper();
+        om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
+        om.activateDefaultTyping(LaissezFaireSubTypeValidator.instance, ObjectMapper.DefaultTyping.NON_FINAL);
+
+        GenericJackson2JsonRedisSerializer jsonSerializer = new GenericJackson2JsonRedisSerializer(om);
+        StringRedisSerializer stringSerializer = new StringRedisSerializer();
+
+        // key 用 String
+        template.setKeySerializer(stringSerializer);
+        template.setHashKeySerializer(stringSerializer);
+        // value 用 JSON
+        template.setValueSerializer(jsonSerializer);
+        template.setHashValueSerializer(jsonSerializer);
+
+        template.afterPropertiesSet();
+        return template;
+    }
+}
diff --git a/src/main/java/com/it/rattan/monisuo/config/WebSocketConfig.java b/src/main/java/com/it/rattan/monisuo/config/WebSocketConfig.java
new file mode 100644
index 0000000..fb2c1e3
--- /dev/null
+++ b/src/main/java/com/it/rattan/monisuo/config/WebSocketConfig.java
@@ -0,0 +1,39 @@
+package com.it.rattan.monisuo.config;
+
+import org.springframework.context.annotation.Configuration;
+import org.springframework.messaging.simp.config.MessageBrokerRegistry;
+import org.springframework.web.socket.config.annotation.EnableWebSocketMessageBroker;
+import org.springframework.web.socket.config.annotation.StompEndpointRegistry;
+import org.springframework.web.socket.config.annotation.WebSocketMessageBrokerConfigurer;
+
+/**
+ * WebSocket 配置 — K线实时推送
+ *
+ * 端点: /ws/kline
+ * 主题: /topic/kline/{coinCode}
+ *
+ * Flutter 使用原生 STOMP 连接，浏览器可用 SockJS 降级
+ */
+@Configuration
+@EnableWebSocketMessageBroker
+public class WebSocketConfig implements WebSocketMessageBrokerConfigurer {
+
+    @Override
+    public void configureMessageBroker(MessageBrokerRegistry config) {
+        // 服务端推送主题前缀
+        config.enableSimpleBroker("/topic");
+        // 客户端发送前缀（本场景不需要客户端主动发消息，预留）
+        config.setApplicationDestinationPrefixes("/app");
+    }
+
+    @Override
+    public void registerStompEndpoints(StompEndpointRegistry registry) {
+        // 原生 WebSocket 端点（Flutter 用）
+        registry.addEndpoint("/ws/kline")
+                .setAllowedOrigins("*");
+        // SockJS 降级端点（浏览器用）
+        registry.addEndpoint("/ws/kline")
+                .setAllowedOrigins("*")
+                .withSockJS();
+    }
+}
diff --git a/src/main/java/com/it/rattan/monisuo/controller/AdminKlineController.java b/src/main/java/com/it/rattan/monisuo/controller/AdminKlineController.java
new file mode 100644
index 0000000..efcb642
--- /dev/null
+++ b/src/main/java/com/it/rattan/monisuo/controller/AdminKlineController.java
@@ -0,0 +1,66 @@
+package com.it.rattan.monisuo.controller;
+
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.it.rattan.monisuo.common.Result;
+import com.it.rattan.monisuo.dto.KlineConfigUpdate;
+import com.it.rattan.monisuo.entity.Coin;
+import com.it.rattan.monisuo.entity.CoinKline;
+import com.it.rattan.monisuo.mapper.CoinMapper;
+import com.it.rattan.monisuo.service.CoinKlineService;
+import com.it.rattan.monisuo.service.CoinService;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+/**
+ * 管理端K线配置 API
+ */
+@Slf4j
+@RestController
+public class AdminKlineController {
+
+    @Autowired
+    private CoinKlineService coinKlineService;
+
+    @Autowired
+    private CoinMapper coinMapper;
+
+    /**
+     * 获取所有币种K线配置
+     */
+    @GetMapping("/admin/kline/config")
+    public Result<List<Coin>> getKlineConfigs() {
+        LambdaQueryWrapper<Coin> wrapper = new LambdaQueryWrapper<>();
+        wrapper.orderByDesc(Coin::getSort);
+        List<Coin> coins = coinMapper.selectList(wrapper);
+        return Result.success(coins);
+    }
+
+    /**
+     * 保存币种K线配置
+     */
+    @PostMapping("/admin/kline/config")
+    public Result<Void> saveKlineConfig(@RequestBody KlineConfigUpdate config) {
+        try {
+            coinKlineService.updateConfig(config);
+            return Result.success("配置已保存", null);
+        } catch (Exception e) {
+            return Result.fail(e.getMessage());
+        }
+    }
+
+    /**
+     * 获取K线预览数据（用于 admin echarts 图表）
+     */
+    @GetMapping("/admin/kline/preview")
+    public Result<List<CoinKline>> getKlinePreview(
+            @RequestParam String coinCode,
+            @RequestParam(defaultValue = "1h") String interval,
+            @RequestParam(defaultValue = "100") int limit) {
+        List<CoinKline> candles = coinKlineService.getHistory(
+                coinCode.toUpperCase(), interval, limit, null);
+        return Result.success(candles);
+    }
+}
diff --git a/src/main/java/com/it/rattan/monisuo/controller/KlineController.java b/src/main/java/com/it/rattan/monisuo/controller/KlineController.java
new file mode 100644
index 0000000..bf34256
--- /dev/null
+++ b/src/main/java/com/it/rattan/monisuo/controller/KlineController.java
@@ -0,0 +1,69 @@
+package com.it.rattan.monisuo.controller;
+
+import com.it.rattan.monisuo.common.Result;
+import com.it.rattan.monisuo.entity.CoinKline;
+import com.it.rattan.monisuo.service.CoinKlineService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+import java.util.Map;
+import java.util.HashMap;
+
+/**
+ * 用户端K线 API
+ */
+@RestController
+public class KlineController {
+
+    @Autowired
+    private CoinKlineService coinKlineService;
+
+    /**
+     * 获取支持的K线周期列表
+     */
+    @GetMapping("/api/kline/intervals")
+    public Result<List<String>> getIntervals() {
+        return Result.success(coinKlineService.getIntervals());
+    }
+
+    /**
+     * 获取历史K线数据（分页）
+     *
+     * @param coinCode  币种代码
+     * @param interval  周期 (15m/1h/4h/1d/1M)
+     * @param limit     数量 (默认200, 最大500)
+     * @param before    查询此时间戳(ms)之前的K线（分页用）
+     */
+    @GetMapping("/api/kline/history")
+    public Result<Map<String, Object>> getHistory(
+            @RequestParam String coinCode,
+            @RequestParam(defaultValue = "1h") String interval,
+            @RequestParam(defaultValue = "200") int limit,
+            @RequestParam(required = false) Long before) {
+
+        List<CoinKline> candles = coinKlineService.getHistory(
+                coinCode.toUpperCase(), interval, limit, before);
+
+        Map<String, Object> data = new HashMap<>();
+        data.put("list", candles);
+        data.put("coinCode", coinCode.toUpperCase());
+        data.put("interval", interval);
+        return Result.success(data);
+    }
+
+    /**
+     * 获取当前进行中的K线
+     */
+    @GetMapping("/api/kline/current")
+    public Result<CoinKline> getCurrentCandle(
+            @RequestParam String coinCode,
+            @RequestParam(defaultValue = "1h") String interval) {
+        CoinKline candle = coinKlineService.getCurrentCandle(
+                coinCode.toUpperCase(), interval);
+        if (candle == null) {
+            return Result.fail("暂无K线数据");
+        }
+        return Result.success(candle);
+    }
+}
diff --git a/src/main/java/com/it/rattan/monisuo/dto/KlineConfigUpdate.java b/src/main/java/com/it/rattan/monisuo/dto/KlineConfigUpdate.java
new file mode 100644
index 0000000..4fbb457
--- /dev/null
+++ b/src/main/java/com/it/rattan/monisuo/dto/KlineConfigUpdate.java
@@ -0,0 +1,37 @@
+package com.it.rattan.monisuo.dto;
+
+import lombok.Getter;
+import lombok.Setter;
+import java.io.Serializable;
+import java.math.BigDecimal;
+
+/**
+ * 管理员K线配置更新 DTO
+ */
+@Getter
+@Setter
+public class KlineConfigUpdate implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    /** 币种代码 */
+    private String coinCode;
+
+    /** 交易开始时间 HH:mm */
+    private String tradeStartTime;
+
+    /** 交易结束时间 HH:mm */
+    private String tradeEndTime;
+
+    /** 每日最大涨跌幅(%) */
+    private BigDecimal maxChangePercent;
+
+    /** K线模拟最低价 */
+    private BigDecimal priceMin;
+
+    /** K线模拟最高价 */
+    private BigDecimal priceMax;
+
+    /** 1=启用模拟 */
+    private Integer simulationEnabled;
+}
diff --git a/src/main/java/com/it/rattan/monisuo/dto/KlineTick.java b/src/main/java/com/it/rattan/monisuo/dto/KlineTick.java
new file mode 100644
index 0000000..b224a77
--- /dev/null
+++ b/src/main/java/com/it/rattan/monisuo/dto/KlineTick.java
@@ -0,0 +1,67 @@
+package com.it.rattan.monisuo.dto;
+
+import lombok.Getter;
+import lombok.Setter;
+import java.io.Serializable;
+import java.math.BigDecimal;
+
+/**
+ * K线 Tick 推送 DTO（WebSocket 广播用）
+ */
+@Getter
+@Setter
+public class KlineTick implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    /** 币种代码 */
+    private String coinCode;
+
+    /** 周期 */
+    private String interval;
+
+    /** 开盘时间戳(ms) */
+    private Long openTime;
+
+    /** 开盘价 */
+    private BigDecimal openPrice;
+
+    /** 最高价 */
+    private BigDecimal highPrice;
+
+    /** 最低价 */
+    private BigDecimal lowPrice;
+
+    /** 收盘价（最新价） */
+    private BigDecimal closePrice;
+
+    /** 成交量 */
+    private BigDecimal volume;
+
+    /** 收盘时间戳(ms) */
+    private Long closeTime;
+
+    /** 是否已收盘 */
+    private Boolean isClosed;
+
+    /** 当前时间戳 */
+    private Long timestamp;
+
+    public KlineTick() {}
+
+    public static KlineTick fromEntity(com.it.rattan.monisuo.entity.CoinKline kline, boolean isClosed) {
+        KlineTick tick = new KlineTick();
+        tick.setCoinCode(kline.getCoinCode());
+        tick.setInterval(kline.getInterval());
+        tick.setOpenTime(kline.getOpenTime());
+        tick.setOpenPrice(kline.getOpenPrice());
+        tick.setHighPrice(kline.getHighPrice());
+        tick.setLowPrice(kline.getLowPrice());
+        tick.setClosePrice(kline.getClosePrice());
+        tick.setVolume(kline.getVolume());
+        tick.setCloseTime(kline.getCloseTime());
+        tick.setIsClosed(isClosed);
+        tick.setTimestamp(System.currentTimeMillis());
+        return tick;
+    }
+}
diff --git a/src/main/java/com/it/rattan/monisuo/entity/CoinKline.java b/src/main/java/com/it/rattan/monisuo/entity/CoinKline.java
new file mode 100644
index 0000000..123af04
--- /dev/null
+++ b/src/main/java/com/it/rattan/monisuo/entity/CoinKline.java
@@ -0,0 +1,53 @@
+package com.it.rattan.monisuo.entity;
+
+import com.baomidou.mybatisplus.annotation.*;
+import lombok.Getter;
+import lombok.Setter;
+import java.io.Serializable;
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+
+/**
+ * K线蜡烛数据实体
+ */
+@Getter
+@Setter
+@TableName("coin_kline")
+public class CoinKline implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    @TableId(type = IdType.AUTO)
+    private Long id;
+
+    /** 币种代码 */
+    private String coinCode;
+
+    /** 周期: 15m/1h/4h/1d/1M */
+    private String interval;
+
+    /** 开盘时间戳(ms) */
+    private Long openTime;
+
+    /** 开盘价 */
+    private BigDecimal openPrice;
+
+    /** 最高价 */
+    private BigDecimal highPrice;
+
+    /** 最低价 */
+    private BigDecimal lowPrice;
+
+    /** 收盘价 */
+    private BigDecimal closePrice;
+
+    /** 模拟成交量 */
+    private BigDecimal volume;
+
+    /** 收盘时间戳(ms) */
+    private Long closeTime;
+
+    /** 创建时间 */
+    @TableField(fill = FieldFill.INSERT)
+    private LocalDateTime createTime;
+}
diff --git a/src/main/java/com/it/rattan/monisuo/mapper/CoinKlineMapper.java b/src/main/java/com/it/rattan/monisuo/mapper/CoinKlineMapper.java
new file mode 100644
index 0000000..dbe885a
--- /dev/null
+++ b/src/main/java/com/it/rattan/monisuo/mapper/CoinKlineMapper.java
@@ -0,0 +1,37 @@
+package com.it.rattan.monisuo.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.it.rattan.monisuo.entity.CoinKline;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+import java.util.List;
+
+/**
+ * K线数据 Mapper
+ */
+@Mapper
+public interface CoinKlineMapper extends BaseMapper<CoinKline> {
+
+    /**
+     * 查询最近的K线数据（按时间倒序）
+     */
+    @Select("SELECT * FROM coin_kline WHERE coin_code = #{coinCode} " +
+            "AND `interval` = #{interval} " +
+            "AND close_time < #{beforeCloseTime} " +
+            "ORDER BY open_time DESC LIMIT #{limit}")
+    List<CoinKline> selectRecentCandles(@Param("coinCode") String coinCode,
+                                         @Param("interval") String interval,
+                                         @Param("beforeCloseTime") long beforeCloseTime,
+                                         @Param("limit") int limit);
+
+    /**
+     * 查询最近的K线数据（不限 before）
+     */
+    @Select("SELECT * FROM coin_kline WHERE coin_code = #{coinCode} " +
+            "AND `interval` = #{interval} " +
+            "ORDER BY open_time DESC LIMIT #{limit}")
+    List<CoinKline> selectLatestCandles(@Param("coinCode") String coinCode,
+                                         @Param("interval") String interval,
+                                         @Param("limit") int limit);
+}
diff --git a/src/main/java/com/it/rattan/monisuo/service/CoinKlineService.java b/src/main/java/com/it/rattan/monisuo/service/CoinKlineService.java
new file mode 100644
index 0000000..756bde4
--- /dev/null
+++ b/src/main/java/com/it/rattan/monisuo/service/CoinKlineService.java
@@ -0,0 +1,482 @@
+package com.it.rattan.monisuo.service;
+
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.it.rattan.monisuo.dto.KlineConfigUpdate;
+import com.it.rattan.monisuo.dto.KlineTick;
+import com.it.rattan.monisuo.entity.Coin;
+import com.it.rattan.monisuo.entity.CoinKline;
+import com.it.rattan.monisuo.mapper.CoinKlineMapper;
+import com.it.rattan.monisuo.mapper.CoinMapper;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.data.redis.core.RedisTemplate;
+import org.springframework.messaging.simp.SimpMessagingTemplate;
+import org.springframework.stereotype.Service;
+
+import javax.annotation.PostConstruct;
+import java.math.BigDecimal;
+import java.math.RoundingMode;
+import java.time.*;
+import java.time.format.DateTimeFormatter;
+import java.util.*;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ThreadLocalRandom;
+
+/**
+ * K线模拟引擎
+ *
+ * 双写策略：ConcurrentHashMap（高性能读写） + Redis（持久化/重启恢复）
+ */
+@Slf4j
+@Service
+public class CoinKlineService {
+
+    private static final String REDIS_CANDLE_PREFIX = "kline:candle:";
+    private static final String REDIS_PRICE_PREFIX = "kline:price:";
+
+    /** 本地内存 — tick 级别高频读写 */
+    private final ConcurrentHashMap<String, CoinKline> currentCandles = new ConcurrentHashMap<>();
+
+    private static final List<String> INTERVALS = Arrays.asList("15m", "1h", "4h", "1d", "1M");
+    private static final BigDecimal TICK_VOLUME_BASE = new BigDecimal("100");
+    private static final double DAILY_TICKS = 9600.0;
+
+    @Autowired
+    private CoinMapper coinMapper;
+
+    @Autowired
+    private CoinKlineMapper coinKlineMapper;
+
+    @Autowired
+    private CoinService coinService;
+
+    @Autowired(required = false)
+    private SimpMessagingTemplate messagingTemplate;
+
+    @Autowired
+    private RedisTemplate<String, Object> redisTemplate;
+
+    /**
+     * 启动时从 Redis 恢复当前进行中的蜡烛
+     */
+    @PostConstruct
+    public void init() {
+        Set<String> keys = redisTemplate.keys(REDIS_CANDLE_PREFIX + "*");
+        if (keys != null && !keys.isEmpty()) {
+            for (String key : keys) {
+                try {
+                    Object obj = redisTemplate.opsForValue().get(key);
+                    if (obj instanceof CoinKline) {
+                        CoinKline candle = (CoinKline) obj;
+                        String mapKey = candle.getCoinCode() + ":" + candle.getInterval();
+                        currentCandles.put(mapKey, candle);
+                    }
+                } catch (Exception e) {
+                    log.warn("恢复K线数据失败: key={}, error={}", key, e.getMessage());
+                }
+            }
+            log.info("从Redis恢复了 {} 个进行中的K线蜡烛", currentCandles.size());
+        }
+
+        // 恢复模拟价格到 CoinService 缓存
+        Set<String> priceKeys = redisTemplate.keys(REDIS_PRICE_PREFIX + "*");
+        if (priceKeys != null && !priceKeys.isEmpty()) {
+            for (String key : priceKeys) {
+                try {
+                    String coinCode = key.substring(REDIS_PRICE_PREFIX.length());
+                    Object priceObj = redisTemplate.opsForValue().get(key);
+                    if (priceObj instanceof BigDecimal) {
+                        coinService.updateCachedPrice(coinCode, (BigDecimal) priceObj);
+                    }
+                } catch (Exception e) {
+                    log.warn("恢复价格失败: key={}, error={}", key, e.getMessage());
+                }
+            }
+            log.info("从Redis恢复了 {} 个币种的模拟价格", priceKeys.size());
+        }
+    }
+
+    // ============================ 公开方法 ============================
+
+    public List<String> getIntervals() {
+        return INTERVALS;
+    }
+
+    /**
+     * 获取历史K线（分页）
+     */
+    public List<CoinKline> getHistory(String coinCode, String interval, int limit, Long beforeTime) {
+        if (limit <= 0 || limit > 500) limit = 200;
+        if (beforeTime == null || beforeTime <= 0) {
+            beforeTime = System.currentTimeMillis();
+        }
+        List<CoinKline> candles = coinKlineMapper.selectRecentCandles(coinCode, interval, beforeTime, limit);
+        Collections.reverse(candles);
+        return candles;
+    }
+
+    /**
+     * 获取当前进行中的K线
+     */
+    public CoinKline getCurrentCandle(String coinCode, String interval) {
+        String key = coinCode.toUpperCase() + ":" + interval;
+        CoinKline kline = currentCandles.get(key);
+        if (kline != null) {
+            return copyKline(kline);
+        }
+        List<CoinKline> latest = coinKlineMapper.selectLatestCandles(coinCode.toUpperCase(), interval, 1);
+        if (!latest.isEmpty()) {
+            return latest.get(0);
+        }
+        return null;
+    }
+
+    /**
+     * 获取所有启用模拟的币种
+     */
+    public List<Coin> getSimulatedCoins() {
+        LambdaQueryWrapper<Coin> wrapper = new LambdaQueryWrapper<>();
+        wrapper.eq(Coin::getSimulationEnabled, 1)
+                .eq(Coin::getStatus, 1);
+        return coinMapper.selectList(wrapper);
+    }
+
+    /**
+     * 管理员更新K线配置
+     */
+    public void updateConfig(KlineConfigUpdate config) {
+        Coin coin = coinService.getCoinByCode(config.getCoinCode());
+        if (coin == null) throw new RuntimeException("币种不存在");
+
+        if (config.getTradeStartTime() != null) coin.setTradeStartTime(config.getTradeStartTime());
+        if (config.getTradeEndTime() != null) coin.setTradeEndTime(config.getTradeEndTime());
+        if (config.getPriceMin() != null) coin.setPriceMin(config.getPriceMin());
+        if (config.getPriceMax() != null) coin.setPriceMax(config.getPriceMax());
+        if (config.getSimulationEnabled() != null) coin.setSimulationEnabled(config.getSimulationEnabled());
+
+        if (coin.getPriceMin() != null && coin.getPriceMax() != null
+                && coin.getPriceMin().compareTo(coin.getPriceMax()) >= 0) {
+            throw new RuntimeException("最低价必须小于最高价");
+        }
+
+        coin.setUpdateTime(LocalDateTime.now());
+        coinMapper.updateById(coin);
+        coinService.clearCache(coin.getCode());
+
+        log.info("K线配置已更新: {} simulation={} priceMin={} priceMax={}",
+                coin.getCode(), coin.getSimulationEnabled(), coin.getPriceMin(), coin.getPriceMax());
+    }
+
+    // ============================ Tick 生成 ============================
+
+    /**
+     * 每 3 秒调用：为所有启用模拟的币种生成一个价格 tick
+     */
+    public List<KlineTick> generateTicks() {
+        List<Coin> coins = getSimulatedCoins();
+        if (coins.isEmpty()) return Collections.emptyList();
+
+        LocalTime now = LocalTime.now();
+        List<KlineTick> ticks = new ArrayList<>();
+
+        for (Coin coin : coins) {
+            if (!isInTradingHours(coin, now)) continue;
+            if (coin.getPriceMin() == null || coin.getPriceMax() == null) continue;
+            if (coin.getPriceMin().compareTo(coin.getPriceMax()) >= 0) continue;
+
+            BigDecimal currentPrice = coin.getPrice();
+            if (currentPrice == null || currentPrice.compareTo(BigDecimal.ZERO) <= 0) {
+                currentPrice = coin.getPriceMin().add(coin.getPriceMax())
+                        .divide(new BigDecimal("2"), 8, RoundingMode.DOWN);
+            }
+            final BigDecimal tickOpenPrice = currentPrice;
+
+            BigDecimal newPrice = simulatePrice(coin, currentPrice);
+
+            // 更新内存价格
+            coin.setPrice(newPrice);
+
+            // 同步到 CoinService 本地缓存 + Redis
+            coinService.updateCachedPrice(coin.getCode(), newPrice);
+            savePriceToRedis(coin.getCode(), newPrice);
+
+            // 为每个周期更新内存K线
+            for (String interval : INTERVALS) {
+                String key = coin.getCode() + ":" + interval;
+                CoinKline candle = currentCandles.computeIfAbsent(key, k -> {
+                    long[] times = calculateIntervalTimes(interval);
+                    CoinKline c = new CoinKline();
+                    c.setCoinCode(coin.getCode());
+                    c.setInterval(interval);
+                    c.setOpenTime(times[0]);
+                    c.setCloseTime(times[1]);
+                    c.setOpenPrice(tickOpenPrice);
+                    c.setHighPrice(tickOpenPrice);
+                    c.setLowPrice(tickOpenPrice);
+                    c.setClosePrice(tickOpenPrice);
+                    c.setVolume(BigDecimal.ZERO);
+                    return c;
+                });
+
+                candle.setClosePrice(newPrice);
+                if (newPrice.compareTo(candle.getHighPrice()) > 0) {
+                    candle.setHighPrice(newPrice);
+                }
+                if (newPrice.compareTo(candle.getLowPrice()) < 0) {
+                    candle.setLowPrice(newPrice);
+                }
+                BigDecimal volIncrement = TICK_VOLUME_BASE.multiply(
+                        new BigDecimal(ThreadLocalRandom.current().nextDouble(0.5, 2.0))
+                                .setScale(4, RoundingMode.DOWN)
+                );
+                candle.setVolume(candle.getVolume().add(volIncrement));
+
+                // 每 tick 写入 Redis（异步安全）
+                saveCandleToRedis(key, candle);
+            }
+
+            // 为所有周期生成 tick 事件
+            for (String interval : INTERVALS) {
+                String tickKey = coin.getCode() + ":" + interval;
+                CoinKline tickCandle = currentCandles.get(tickKey);
+                if (tickCandle != null) {
+                    ticks.add(KlineTick.fromEntity(tickCandle, false));
+                }
+            }
+        }
+
+        return ticks;
+    }
+
+    // ============================ K线收盘 ============================
+
+    public List<KlineTick> closeCandlesForInterval(String closedInterval) {
+        List<Coin> coins = getSimulatedCoins();
+        List<KlineTick> closedTicks = new ArrayList<>();
+
+        for (Coin coin : coins) {
+            String key = coin.getCode() + ":" + closedInterval;
+            CoinKline candle = currentCandles.remove(key);
+            if (candle == null) continue;
+
+            if (candle.getClosePrice() != null && candle.getClosePrice().compareTo(BigDecimal.ZERO) > 0) {
+                coinKlineMapper.insert(candle);
+                log.debug("K线已收盘: {} {} open={}", coin.getCode(), closedInterval, candle.getOpenPrice());
+            }
+
+            // 从 Redis 移除已收盘的蜡烛
+            removeCandleFromRedis(key);
+
+            closedTicks.add(KlineTick.fromEntity(candle, true));
+
+            if ("1d".equals(closedInterval)) {
+                updateCoinDailyStats(coin, candle);
+            }
+        }
+
+        return closedTicks;
+    }
+
+    public List<String> detectIntervalCrossings(long previousTickTime) {
+        List<String> crossed = new ArrayList<>();
+        long now = System.currentTimeMillis();
+
+        if (differentIntervalSlot(previousTickTime, now, 15 * 60 * 1000L)) crossed.add("15m");
+        if (differentIntervalSlot(previousTickTime, now, 60 * 60 * 1000L)) crossed.add("1h");
+        if (different4hSlot(previousTickTime, now)) crossed.add("4h");
+        if (differentDaySlot(previousTickTime, now)) crossed.add("1d");
+        if (differentMonthSlot(previousTickTime, now)) crossed.add("1M");
+
+        return crossed;
+    }
+
+    // ============================ Redis 操作 ============================
+
+    private void saveCandleToRedis(String key, CoinKline candle) {
+        try {
+            redisTemplate.opsForValue().set(REDIS_CANDLE_PREFIX + key, candle);
+        } catch (Exception e) {
+            log.warn("Redis写入蜡烛失败: key={}, error={}", key, e.getMessage());
+        }
+    }
+
+    private void removeCandleFromRedis(String key) {
+        try {
+            redisTemplate.delete(REDIS_CANDLE_PREFIX + key);
+        } catch (Exception e) {
+            log.warn("Redis删除蜡烛失败: key={}, error={}", key, e.getMessage());
+        }
+    }
+
+    private void savePriceToRedis(String coinCode, BigDecimal price) {
+        try {
+            redisTemplate.opsForValue().set(REDIS_PRICE_PREFIX + coinCode.toUpperCase(), price);
+        } catch (Exception e) {
+            log.warn("Redis写入价格失败: coin={}, error={}", coinCode, e.getMessage());
+        }
+    }
+
+    // ============================ GBM 模拟算法 ============================
+
+    private BigDecimal simulatePrice(Coin coin, BigDecimal currentPrice) {
+        double S = currentPrice.doubleValue();
+        double priceMin = coin.getPriceMin().doubleValue();
+        double priceMax = coin.getPriceMax().doubleValue();
+        double midpoint = (priceMin + priceMax) / 2.0;
+        double halfRange = (priceMax - priceMin) / 2.0;
+
+        double sigma = halfRange / Math.max(midpoint, 0.00000001) / Math.sqrt(DAILY_TICKS);
+        double dt = 1.0 / DAILY_TICKS;
+
+        double u1 = ThreadLocalRandom.current().nextDouble();
+        double u2 = ThreadLocalRandom.current().nextDouble();
+        double Z = Math.sqrt(-2.0 * Math.log(Math.max(u1, 1e-10))) * Math.cos(2.0 * Math.PI * u2);
+
+        double mu = 0;
+        double deviation = (S - midpoint) / halfRange;
+        double absDeviation = Math.abs(deviation);
+        if (absDeviation > 0.85) {
+            mu = -deviation * 0.02;
+        } else if (absDeviation > 0.65) {
+            mu = -deviation * 0.005;
+        }
+
+        double dS = mu * S * dt + sigma * S * Math.sqrt(dt) * Z;
+        double newPrice = S + dS;
+
+        newPrice = Math.max(priceMin, Math.min(priceMax, newPrice));
+        newPrice = Math.max(newPrice, 0.00000001);
+
+        return new BigDecimal(newPrice).setScale(8, RoundingMode.DOWN);
+    }
+
+    // ============================ 辅助方法 ============================
+
+    private boolean isInTradingHours(Coin coin, LocalTime now) {
+        String startStr = coin.getTradeStartTime();
+        String endStr = coin.getTradeEndTime();
+        if (startStr == null || endStr == null) return true;
+
+        try {
+            LocalTime start = LocalTime.parse(startStr, DateTimeFormatter.ofPattern("HH:mm"));
+            LocalTime end = LocalTime.parse(endStr, DateTimeFormatter.ofPattern("HH:mm"));
+            if (end.isAfter(start)) {
+                return !now.isBefore(start) && !now.isAfter(end);
+            } else {
+                return !now.isBefore(start) || !now.isAfter(end);
+            }
+        } catch (Exception e) {
+            return true;
+        }
+    }
+
+    private long[] calculateIntervalTimes(String interval) {
+        Instant now = Instant.now();
+        ZoneId zone = ZoneId.of("Asia/Shanghai");
+        ZonedDateTime zdt = now.atZone(zone);
+
+        long openTime, closeTime;
+        switch (interval) {
+            case "15m": {
+                int minute = zdt.getMinute();
+                int slot = (minute / 15) * 15;
+                ZonedDateTime open = zdt.withMinute(slot).withSecond(0).withNano(0);
+                openTime = open.toInstant().toEpochMilli();
+                closeTime = open.plusMinutes(15).toInstant().toEpochMilli();
+                break;
+            }
+            case "1h": {
+                ZonedDateTime open = zdt.withMinute(0).withSecond(0).withNano(0);
+                openTime = open.toInstant().toEpochMilli();
+                closeTime = open.plusHours(1).toInstant().toEpochMilli();
+                break;
+            }
+            case "4h": {
+                int hour = zdt.getHour();
+                int slot = (hour / 4) * 4;
+                ZonedDateTime open = zdt.withHour(slot).withMinute(0).withSecond(0).withNano(0);
+                openTime = open.toInstant().toEpochMilli();
+                closeTime = open.plusHours(4).toInstant().toEpochMilli();
+                break;
+            }
+            case "1d": {
+                ZonedDateTime open = zdt.withHour(0).withMinute(0).withSecond(0).withNano(0);
+                openTime = open.toInstant().toEpochMilli();
+                closeTime = open.plusDays(1).toInstant().toEpochMilli();
+                break;
+            }
+            case "1M": {
+                ZonedDateTime open = zdt.withDayOfMonth(1).withHour(0).withMinute(0).withSecond(0).withNano(0);
+                openTime = open.toInstant().toEpochMilli();
+                closeTime = open.plusMonths(1).toInstant().toEpochMilli();
+                break;
+            }
+            default:
+                throw new IllegalArgumentException("不支持的周期: " + interval);
+        }
+        return new long[]{openTime, closeTime};
+    }
+
+    private boolean differentIntervalSlot(long t1, long t2, long intervalMs) {
+        return (t1 / intervalMs) != (t2 / intervalMs);
+    }
+
+    private boolean different4hSlot(long t1, long t2) {
+        ZoneId zone = ZoneId.of("Asia/Shanghai");
+        int h1 = Instant.ofEpochMilli(t1).atZone(zone).getHour() / 4;
+        int h2 = Instant.ofEpochMilli(t2).atZone(zone).getHour() / 4;
+        int d1 = Instant.ofEpochMilli(t1).atZone(zone).getDayOfYear();
+        int d2 = Instant.ofEpochMilli(t2).atZone(zone).getDayOfYear();
+        return d1 != d2 || h1 != h2;
+    }
+
+    private boolean differentDaySlot(long t1, long t2) {
+        ZoneId zone = ZoneId.of("Asia/Shanghai");
+        return Instant.ofEpochMilli(t1).atZone(zone).toLocalDate()
+                .isBefore(Instant.ofEpochMilli(t2).atZone(zone).toLocalDate());
+    }
+
+    private boolean differentMonthSlot(long t1, long t2) {
+        ZoneId zone = ZoneId.of("Asia/Shanghai");
+        ZonedDateTime z1 = Instant.ofEpochMilli(t1).atZone(zone);
+        ZonedDateTime z2 = Instant.ofEpochMilli(t2).atZone(zone);
+        return z1.getYear() != z2.getYear() || z1.getMonthValue() != z2.getMonthValue();
+    }
+
+    private void updateCoinDailyStats(Coin coin, CoinKline dailyCandle) {
+        coin.setPrice(dailyCandle.getClosePrice());
+        BigDecimal change = dailyCandle.getClosePrice()
+                .subtract(dailyCandle.getOpenPrice())
+                .divide(dailyCandle.getOpenPrice(), 8, RoundingMode.DOWN)
+                .multiply(new BigDecimal("100"));
+        coin.setChange24h(change);
+        coin.setHigh24h(dailyCandle.getHighPrice());
+        coin.setLow24h(dailyCandle.getLowPrice());
+        coin.setVolume24h(dailyCandle.getVolume());
+        coin.setUpdateTime(LocalDateTime.now());
+        coinMapper.updateById(coin);
+        coinService.clearCache(coin.getCode());
+
+        // 日线收盘后清理 Redis 中的价格（下次 tick 会重新写入）
+        try {
+            redisTemplate.delete(REDIS_PRICE_PREFIX + coin.getCode().toUpperCase());
+        } catch (Exception ignored) {}
+
+        log.info("日线收盘更新: {} price={} change={}%", coin.getCode(), coin.getPrice(), change);
+    }
+
+    private CoinKline copyKline(CoinKline source) {
+        CoinKline copy = new CoinKline();
+        copy.setId(source.getId());
+        copy.setCoinCode(source.getCoinCode());
+        copy.setInterval(source.getInterval());
+        copy.setOpenTime(source.getOpenTime());
+        copy.setOpenPrice(source.getOpenPrice());
+        copy.setHighPrice(source.getHighPrice());
+        copy.setLowPrice(source.getLowPrice());
+        copy.setClosePrice(source.getClosePrice());
+        copy.setVolume(source.getVolume());
+        copy.setCloseTime(source.getCloseTime());
+        return copy;
+    }
+}
diff --git a/src/main/java/com/it/rattan/monisuo/service/KlineScheduler.java b/src/main/java/com/it/rattan/monisuo/service/KlineScheduler.java
new file mode 100644
index 0000000..ad6c468
--- /dev/null
+++ b/src/main/java/com/it/rattan/monisuo/service/KlineScheduler.java
@@ -0,0 +1,72 @@
+package com.it.rattan.monisuo.service;
+
+import com.it.rattan.monisuo.dto.KlineTick;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.messaging.simp.SimpMessagingTemplate;
+import org.springframework.scheduling.annotation.Scheduled;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+/**
+ * K线调度器 — 定时生成 tick + 检测周期边界
+ */
+@Slf4j
+@Service
+public class KlineScheduler {
+
+    @Autowired
+    private CoinKlineService coinKlineService;
+
+    @Autowired(required = false)
+    private SimpMessagingTemplate messagingTemplate;
+
+    /** 上次 tick 的时间戳，用于检测周期边界跨越 */
+    private long lastTickTime = System.currentTimeMillis();
+
+    /**
+     * 每 3 秒执行一次：生成价格 tick + WebSocket 广播
+     */
+    @Scheduled(fixedRate = 3000)
+    public void tick() {
+        try {
+            long now = System.currentTimeMillis();
+
+            // 1. 检测周期边界跨越
+            List<String> crossedIntervals = coinKlineService.detectIntervalCrossings(lastTickTime);
+            if (!crossedIntervals.isEmpty()) {
+                for (String interval : crossedIntervals) {
+                    log.info("K线周期跨越: {}", interval);
+                    List<KlineTick> closedTicks = coinKlineService.closeCandlesForInterval(interval);
+                    // 广播收盘 tick
+                    for (KlineTick tick : closedTicks) {
+                        broadcastTick(tick);
+                    }
+                }
+            }
+
+            // 2. 生成新的价格 tick
+            List<KlineTick> ticks = coinKlineService.generateTicks();
+
+            // 3. WebSocket 广播
+            for (KlineTick tick : ticks) {
+                broadcastTick(tick);
+            }
+
+            lastTickTime = now;
+        } catch (Exception e) {
+            log.error("K线 tick 调度异常", e);
+        }
+    }
+
+    private void broadcastTick(KlineTick tick) {
+        if (messagingTemplate != null) {
+            try {
+                messagingTemplate.convertAndSend("/topic/kline/" + tick.getCoinCode(), tick);
+            } catch (Exception e) {
+                log.warn("WebSocket 广播失败: {}", e.getMessage());
+            }
+        }
+    }
+}