diff --git a/frontend/mobile-app/lib/core/services/contract_signing_service.dart b/frontend/mobile-app/lib/core/services/contract_signing_service.dart
index 1d729684..e3b0af7d 100644
--- a/frontend/mobile-app/lib/core/services/contract_signing_service.dart
+++ b/frontend/mobile-app/lib/core/services/contract_signing_service.dart
@@ -185,9 +185,13 @@ class ContractSigningService {
       final response = await _apiClient.get('/planting/contract-signing/pending');
 
       if (response.statusCode == 200) {
-        final data = response.data as List<dynamic>;
-        debugPrint('[ContractSigningService] 待签署任务数量: ${data.length}');
-        return data.map((e) => ContractSigningTask.fromJson(e)).toList();
+        final responseData = response.data as Map<String, dynamic>;
+        if (responseData['success'] == true && responseData['data'] != null) {
+          final data = responseData['data'] as List<dynamic>;
+          debugPrint('[ContractSigningService] 待签署任务数量: ${data.length}');
+          return data.map((e) => ContractSigningTask.fromJson(e)).toList();
+        }
+        return [];
       }
 
       throw Exception('获取待签署任务失败: ${response.statusCode}');
@@ -205,9 +209,13 @@ class ContractSigningService {
       final response = await _apiClient.get('/planting/contract-signing/unsigned');
 
       if (response.statusCode == 200) {
-        final data = response.data as List<dynamic>;
-        debugPrint('[ContractSigningService] 未签署任务数量: ${data.length}');
-        return data.map((e) => ContractSigningTask.fromJson(e)).toList();
+        final responseData = response.data as Map<String, dynamic>;
+        if (responseData['success'] == true && responseData['data'] != null) {
+          final data = responseData['data'] as List<dynamic>;
+          debugPrint('[ContractSigningService] 未签署任务数量: ${data.length}');
+          return data.map((e) => ContractSigningTask.fromJson(e)).toList();
+        }
+        return [];
       }
 
       throw Exception('获取未签署任务失败: ${response.statusCode}');