diff --git a/frontend/app/web-gold/src/composables/useUpload.js b/frontend/app/web-gold/src/composables/useUpload.js
index 320049e8b9..3a9f8ae2a7 100644
--- a/frontend/app/web-gold/src/composables/useUpload.js
+++ b/frontend/app/web-gold/src/composables/useUpload.js
@@ -111,8 +111,8 @@ export function useUpload() {
       // 开发环境：使用 /oss 代理避免CORS问题
       // 生产环境：使用自定义域名（签名基于路径，域名可替换）
       const uploadUrl = isDev()
-        ? presignedData.presignedUrl.replace(OSS_ORIGINAL, '/oss')
-        : presignedData.presignedUrl.replace(OSS_ORIGINAL, OSS_DOMAIN)
+        ? presignedData.presignedUrl.replace(OSS_DOMAIN, '/oss')
+        : presignedData.presignedUrl
       xhr.open('PUT', uploadUrl)
       if (presignedData.headers && presignedData.headers['Content-Type']) {
         xhr.setRequestHeader('Content-Type', presignedData.headers['Content-Type'])