diff --git a/frontend/mobile-app/lib/core/services/wallet_service.dart b/frontend/mobile-app/lib/core/services/wallet_service.dart
index d965586c..3bf7f92c 100644
--- a/frontend/mobile-app/lib/core/services/wallet_service.dart
+++ b/frontend/mobile-app/lib/core/services/wallet_service.dart
@@ -160,8 +160,13 @@ class WalletService {
       debugPrint('[WalletService] 响应数据类型: ${response.data.runtimeType}');
 
       if (response.statusCode == 200) {
-        final data = response.data as Map<String, dynamic>;
-        debugPrint('[WalletService] 原始响应数据: $data');
+        final responseData = response.data as Map<String, dynamic>;
+        debugPrint('[WalletService] 原始响应数据: $responseData');
+
+        // API 返回格式: { success: true, data: {...}, timestamp: "..." }
+        // 需要解包内层的 data 字段
+        final data = responseData['data'] as Map<String, dynamic>? ?? responseData;
+        debugPrint('[WalletService] 解包后数据: $data');
 
         // 解析并打印详细信息
         final wallet = WalletResponse.fromJson(data);