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 bcc1f059..817b774c 100644
--- a/frontend/mobile-app/lib/core/services/contract_signing_service.dart
+++ b/frontend/mobile-app/lib/core/services/contract_signing_service.dart
@@ -23,6 +23,7 @@ class ContractSigningTask {
   final double totalAmount;
   final String provinceName;
   final String cityName;
+  final String? userRealName; // 用户实名（用于签名参照）
   final DateTime expiresAt;
   final DateTime? scrolledToBottomAt;
   final DateTime? acknowledgedAt;
@@ -41,6 +42,7 @@ class ContractSigningTask {
     required this.totalAmount,
     required this.provinceName,
     required this.cityName,
+    this.userRealName,
     required this.expiresAt,
     this.scrolledToBottomAt,
     this.acknowledgedAt,
@@ -61,6 +63,7 @@ class ContractSigningTask {
       totalAmount: (json['totalAmount'] ?? 0).toDouble(),
       provinceName: json['provinceName'] ?? '',
       cityName: json['cityName'] ?? '',
+      userRealName: json['userRealName'],
       expiresAt: json['expiresAt'] != null
           ? DateTime.parse(json['expiresAt'])
           : DateTime.now().add(const Duration(hours: 24)),