diff --git a/frontend/mobile-app/lib/features/authorization/presentation/pages/authorization_apply_page.dart b/frontend/mobile-app/lib/features/authorization/presentation/pages/authorization_apply_page.dart
index 5eacad6f..08395e66 100644
--- a/frontend/mobile-app/lib/features/authorization/presentation/pages/authorization_apply_page.dart
+++ b/frontend/mobile-app/lib/features/authorization/presentation/pages/authorization_apply_page.dart
@@ -250,7 +250,7 @@ class _AuthorizationApplyPageState
               height: 300,
               showType: ShowType.pc, // 只显示省市两级
               barrierDismissible: true,
-              locationCode: tempCityCode ?? tempProvinceCode, // 默认选中保存的位置
+              locationCode: tempCityCode ?? tempProvinceCode ?? '', // 默认选中保存的位置
             );
 
             if (result != null) {