diff --git a/frontend/mining-app/android/app/src/main/res/xml/file_paths.xml b/frontend/mining-app/android/app/src/main/res/xml/file_paths.xml
index c192eedf..23f37043 100644
--- a/frontend/mining-app/android/app/src/main/res/xml/file_paths.xml
+++ b/frontend/mining-app/android/app/src/main/res/xml/file_paths.xml
@@ -2,6 +2,8 @@
 <paths xmlns:android="http://schemas.android.com/apk/res/android">
     <external-path name="external_files" path="." />
     <files-path name="files" path="." />
+    <!-- Flutter Documents 目录 (getApplicationDocumentsDirectory) -->
+    <files-path name="app_flutter" path="app_flutter/" />
     <cache-path name="cache" path="." />
     <external-files-path name="external_files_path" path="." />
     <external-cache-path name="external_cache_path" path="." />