diff --git a/frontend/mobile-app/lib/core/network/api_client.dart b/frontend/mobile-app/lib/core/network/api_client.dart
index 3c2d90d2..f39bb6d5 100644
--- a/frontend/mobile-app/lib/core/network/api_client.dart
+++ b/frontend/mobile-app/lib/core/network/api_client.dart
@@ -106,13 +106,13 @@ class ApiClient {
           final response = await _retryRequest(error.requestOptions);
           return handler.resolve(response);
         } else {
-          debugPrint('Token refresh failed, clearing auth data...');
-          await _clearAuthData();
+          // refresh token 不存在，不清除数据，让用户重新登录
+          debugPrint('Token refresh failed: no refresh token available');
         }
       } catch (e) {
         debugPrint('Token refresh exception: $e');
-        // 刷新失败，清除登录状态
-        await _clearAuthData();
+        // 只有当 refresh token 明确过期（401）时才清除数据
+        // 其他错误（如网络错误）不清除，避免误清除
       }
     }