diff --git a/frontend/app/web-gold/src/views/kling/IdentifyFace.vue b/frontend/app/web-gold/src/views/kling/IdentifyFace.vue
index bd30c471e6..a346f7eb4d 100644
--- a/frontend/app/web-gold/src/views/kling/IdentifyFace.vue
+++ b/frontend/app/web-gold/src/views/kling/IdentifyFace.vue
@@ -131,7 +131,14 @@
             </div>
 
             <div v-else class="upload-preview">
-              <video :src="videoState.uploadedVideo" controls class="preview-video-player"></video>
+              <video
+                :src="videoState.uploadedVideo"
+                controls
+                playsinline
+                preload="metadata"
+                class="preview-video-player"
+                @error="handleVideoError"
+              ></video>
               <p class="upload-filename">{{ videoState.videoFile?.name }}</p>
               <button class="change-video-btn" @click="replaceVideo">更换</button>
             </div>
@@ -262,6 +269,7 @@ const {
   handleSelectFromLibrary,
   handleVideoSelect,
   handleVideoLoaded,
+  handleVideoError,
   replaceVideo,
 
   // UI 辅助方法
diff --git a/frontend/app/web-gold/src/views/kling/hooks/useDigitalHumanGeneration.ts b/frontend/app/web-gold/src/views/kling/hooks/useDigitalHumanGeneration.ts
index e9e2c107e6..1d869d0f62 100644
--- a/frontend/app/web-gold/src/views/kling/hooks/useDigitalHumanGeneration.ts
+++ b/frontend/app/web-gold/src/views/kling/hooks/useDigitalHumanGeneration.ts
@@ -59,6 +59,11 @@ export function useDigitalHumanGeneration() {
       return
     }
 
+    // 释放旧的 blob URL
+    if (videoState.value.uploadedVideo && videoState.value.uploadedVideo.startsWith('blob:')) {
+      URL.revokeObjectURL(videoState.value.uploadedVideo)
+    }
+
     videoState.value.videoFile = file
     videoState.value.uploadedVideo = URL.createObjectURL(file)
     videoState.value.selectedVideo = null
@@ -119,6 +124,10 @@ export function useDigitalHumanGeneration() {
   }
 
   function resetVideoState(): void {
+    // 释放 blob URL 避免内存泄漏
+    if (videoState.value.uploadedVideo && videoState.value.uploadedVideo.startsWith('blob:')) {
+      URL.revokeObjectURL(videoState.value.uploadedVideo)
+    }
     videoState.value.uploadedVideo = ''
     videoState.value.videoFile = null
     videoState.value.selectedVideo = null
diff --git a/frontend/app/web-gold/src/views/kling/hooks/useIdentifyFaceController.ts b/frontend/app/web-gold/src/views/kling/hooks/useIdentifyFaceController.ts
index 245b0c1d97..7db2894f0c 100644
--- a/frontend/app/web-gold/src/views/kling/hooks/useIdentifyFaceController.ts
+++ b/frontend/app/web-gold/src/views/kling/hooks/useIdentifyFaceController.ts
@@ -290,6 +290,11 @@ export function useIdentifyFaceController() {
     digitalHuman.videoState.value.previewVideoUrl = videoUrl
   }
 
+  function handleVideoError(event: Event): void {
+    console.error('视频加载失败:', event)
+    message.error('视频无法播放，请尝试其他视频文件')
+  }
+
   // ==================== UI 工具方法 ====================
 
   function formatDuration(seconds: number): string {
@@ -347,6 +352,7 @@ export function useIdentifyFaceController() {
     handleSelectFromLibrary,
     handleVideoSelect,
     handleVideoLoaded,
+    handleVideoError,
 
     // UI 工具
     formatDuration,