diff --git a/frontend-vue/src/pages/brand/components/BrandBrandTab.vue b/frontend-vue/src/pages/brand/components/BrandBrandTab.vue
index 20615357..b66489f1 100644
--- a/frontend-vue/src/pages/brand/components/BrandBrandTab.vue
+++ b/frontend-vue/src/pages/brand/components/BrandBrandTab.vue
@@ -286,7 +286,7 @@ async function uploadBrandPathsToJava(paths: Array<string | BrandExpandFolderIte
   for (const item of paths) {
     const filePath = typeof item === 'string' ? item : item.absolutePath
     const relativePath = typeof item === 'string' ? undefined : item.relativePath
-    const uploaded = await api.upload_file_to_java(filePath, relativePath)
+    const uploaded = await api.upload_file_to_java(filePath, relativePath, true)
     if (!uploaded?.success || !uploaded.data) {
       throw new Error(uploaded?.error || uploaded?.message || `上传失败：${filePath}`)
     }
@@ -356,12 +356,13 @@ async function submitRun() {
   }
   submitting.value = true
   try {
-    // 上传后以服务器可读的 localPath 作为 fileUrl（Java resolveSourceFile 直接读临时文件）
+    // 上传后以可跨节点下载的源地址作为 fileUrl：优先 OSS url（uploadToOss=true 的桌面桥），
+    // 旧桌面桥只回 localPath（Java 容器临时路径，双活组装可能读不到），作为兜底仍透传。
     const files: UploadedFileRef[] = uploadedFiles.value.map((f) => ({
       fileKey: f.fileKey,
       originalFilename: f.originalFilename,
       relativePath: f.relativePath,
-      fileUrl: f.localPath,
+      fileUrl: f.url || f.localPath,
     }))
     if (runMode.value === 'immediate') {
       const res = await runBrandNow(files, strategy.value)
diff --git a/frontend-vue/src/shared/bridges/pywebview.ts b/frontend-vue/src/shared/bridges/pywebview.ts
index 5eabd2c4..5555c772 100644
--- a/frontend-vue/src/shared/bridges/pywebview.ts
+++ b/frontend-vue/src/shared/bridges/pywebview.ts
@@ -93,6 +93,7 @@ export interface PywebviewApi {
   upload_file_to_java?: (
     filePath: string,
     relativePath?: string,
+    uploadOss?: boolean,
   ) => Promise<{
     success: boolean;
     message?: string;
diff --git a/frontend-vue/src/shared/bridges/web-fallback.ts b/frontend-vue/src/shared/bridges/web-fallback.ts
index 52379a3d..36d79e1d 100644
--- a/frontend-vue/src/shared/bridges/web-fallback.ts
+++ b/frontend-vue/src/shared/bridges/web-fallback.ts
@@ -125,8 +125,8 @@ export const webFallbackApi: PywebviewApi = {
     return registerWebFiles(files)
   },
 
-  /** 虚拟路径 → 浏览器 File → 上传 Java 临时目录；返回结构与桌面桥一致（透传 Java ApiResponse<UploadFileVo>） */
-  async upload_file_to_java(filePath, relativePath) {
+  /** 虚拟路径 → 浏览器 File → 上传 Java；uploadOss=true 时同时上传公开 OSS（品牌检测等服务端化工具用） */
+  async upload_file_to_java(filePath, relativePath, uploadOss) {
     const file = typeof filePath === 'string' ? webFileMap.get(filePath) : undefined
     if (!file) {
       return { success: false, error: '文件不存在，请重新选择' }
@@ -136,6 +136,10 @@ export const webFallbackApi: PywebviewApi = {
     if (relativePath) {
       form.append('relativePath', relativePath)
     }
+    if (uploadOss) {
+      form.append('uploadToOss', 'true')
+      form.append('moduleType', 'BRAND')
+    }
     try {
       // http 实例对 /newApi 前缀自动附带 Bearer；FormData 的 Content-Type 交由浏览器自动生成（含 boundary）
       const response = await http.post('/newApi/api/files/upload', form, { timeout: 120000 })