diff --git a/backend/views/kefu.py b/backend/views/kefu.py
index a4e1383..9c87d06 100644
--- a/backend/views/kefu.py
+++ b/backend/views/kefu.py
@@ -966,6 +966,7 @@ class KefuGetShangjiaDetailView(APIView):
             'jinyuedingdan': shangjia.jinyuedingdan,
             'jinyueliushui': str(shangjia.jinyueliushui),
             'is_youzhi_shangjia': bool(shangjia.is_youzhi_shangjia),
+            'is_teyue_shangjia': bool(getattr(shangjia, 'is_teyue_shangjia', False)),
             'CreateTime': shangjia.CreateTime.isoformat() if shangjia.CreateTime else None,
             'create_time': user.UserCreateTime.strftime('%Y-%m-%d %H:%M:%S') if getattr(user, 'UserCreateTime', None) else '',
         }
@@ -999,7 +1000,7 @@ class KefuUpdateShangjiaView(APIView):
             return Response({'code': 401, 'msg': '缺少username'})
         if not yonghuid:
             return Response({'code': 400, 'msg': '缺少商家ID'})
-        if action not in ('add_balance', 'sub_balance', 'ban', 'unban', 'set_youzhi'):
+        if action not in ('add_balance', 'sub_balance', 'ban', 'unban', 'set_youzhi', 'set_teyue'):
             return Response({'code': 400, 'msg': 'action参数无效'})
 
         # 权限校验
@@ -1008,7 +1009,7 @@ class KefuUpdateShangjiaView(APIView):
             return permissions
 
         # 操作权限校验
-        if action in ('add_balance', 'ban', 'unban', 'set_youzhi') and '1100a' not in permissions:
+        if action in ('add_balance', 'ban', 'unban', 'set_youzhi', 'set_teyue') and '1100a' not in permissions:
             return Response({'code': 403, 'msg': '无权限执行此操作（需要1100a）'})
         if action == 'sub_balance' and '1100b' not in permissions:
             return Response({'code': 403, 'msg': '无权限减少商家余额（需要1100b）'})
@@ -1139,6 +1140,27 @@ class KefuUpdateShangjiaView(APIView):
                     'data': {'is_youzhi_shangjia': is_youzhi},
                 })
 
+            if action == 'set_teyue':
+                if '1100a' not in permissions:
+                    return Response({'code': 403, 'msg': '无权限设置特约商家（需要1100a）'})
+                is_teyue = bool(request.data.get('is_teyue_shangjia', False))
+                shangjia.is_teyue_shangjia = is_teyue
+                shangjia.save(update_fields=['is_teyue_shangjia'])
+                write_xiugai_log(
+                    yonghuid=yonghuid,
+                    xiugaiid=kefu.user.Phone,
+                    leixing=XIUGAI_LEIXING_SHANGJIA,
+                    qitashuoming=(
+                        f'【后台】设置特约商家（可更换打手）：{is_teyue}，'
+                        f'商家ID={yonghuid}，昵称={shangjia.nicheng}，操作人={kefu.user.Phone}'
+                    ),
+                )
+                return Response({
+                    'code': 0,
+                    'msg': '特约商家设置成功',
+                    'data': {'is_teyue_shangjia': is_teyue},
+                })
+
         return Response({'code': 400, 'msg': '未知操作'})
 
 
diff --git a/orders/views/admin.py b/orders/views/admin.py
index 83f9b59..349e68b 100644
--- a/orders/views/admin.py
+++ b/orders/views/admin.py
@@ -1785,12 +1785,23 @@ class ZxsjghdsView(APIView):
         except AttributeError:
             return Response({'code': 1, 'msg': '用户认证失败'}, status=status.HTTP_401_UNAUTHORIZED)
 
-        # ========== 2. 提取订单ID ==========
+        # ========== 2. 仅特约商家可更换打手 ==========
+        try:
+            shop_profile = UserShangjia.query.get(user__UserUID=yonghuid)
+        except UserShangjia.DoesNotExist:
+            return Response({'code': 3, 'msg': '商家信息不存在'}, status=status.HTTP_403_FORBIDDEN)
+        if not bool(getattr(shop_profile, 'is_teyue_shangjia', False)):
+            return Response(
+                {'code': 403, 'msg': '仅特约商家可更换打手，请申请退款或结算'},
+                status=status.HTTP_403_FORBIDDEN,
+            )
+
+        # ========== 3. 提取订单ID ==========
         dingdan_id = str(request.data.get('OrderID') or request.data.get('dingdan_id') or '').strip()
         if not dingdan_id:
             return Response({'code': 2, 'msg': '订单ID不能为空'}, status=status.HTTP_400_BAD_REQUEST)
 
-        # ========== 3. 查询订单并校验权限 ==========
+        # ========== 4. 查询订单并校验权限 ==========
         try:
             # 关联查询商家扩展表，确保当前商家是该订单的发布者
             shangjia_kuozhan = MerchantOrderExt.query.select_related('Order').get(
@@ -1802,7 +1813,7 @@ class ZxsjghdsView(APIView):
 
         old_order = shangjia_kuozhan.Order
 
-        # ========== 4. 状态校验（仅允许进行中或结算中） ==========
+        # ========== 5. 状态校验（仅允许进行中或结算中） ==========
         if old_order.Status not in [2, 8]:
             return Response({'code': 4, 'msg': '当前订单状态不允许更换打手'}, status=status.HTTP_400_BAD_REQUEST)
 
diff --git a/users/migrations/0009_user_shangjia_teyue.py b/users/migrations/0009_user_shangjia_teyue.py
new file mode 100644
index 0000000..70d7558
--- /dev/null
+++ b/users/migrations/0009_user_shangjia_teyue.py
@@ -0,0 +1,16 @@
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('users', '0008_fengjin_yuanyin'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='usershangjia',
+            name='is_teyue_shangjia',
+            field=models.BooleanField(default=False, verbose_name='特约商家'),
+        ),
+    ]
diff --git a/users/models.py b/users/models.py
index 0f1345d..52a0ad9 100644
--- a/users/models.py
+++ b/users/models.py
@@ -205,6 +205,7 @@ class UserShangjia(QModel):
     jinyuedingdan = models.IntegerField(default=0, verbose_name='商家今月订单总量')
     jinyueliushui = models.DecimalField(max_digits=12, decimal_places=2, default=0.00, verbose_name='商家今月流水')
     is_youzhi_shangjia = models.BooleanField(default=False, verbose_name='优质商家')
+    is_teyue_shangjia = models.BooleanField(default=False, verbose_name='特约商家')
     CreateTime = models.DateTimeField(auto_now_add=True, verbose_name='创建时间')
 
     class Meta: