diff --git a/src/WMS.Web.Domain/Services/BackRecordService.cs b/src/WMS.Web.Domain/Services/BackRecordService.cs
index 2bc8f38e..6caf8c19 100644
--- a/src/WMS.Web.Domain/Services/BackRecordService.cs
+++ b/src/WMS.Web.Domain/Services/BackRecordService.cs
@@ -31,16 +31,19 @@ namespace WMS.Web.Domain.Services
         private readonly IBoxInventoryService _boxInventoryService;
         private readonly IChangeMoveBoxService _changeMoveBoxService;
         private readonly ISerialNumbersRepositories _serialNumbersRepositories;
+        private readonly IInStockTaskBoxService _inStockTaskBoxService;
         public BackRecordService(IMapper mapper, ILoginService loginService,
              IBasicsRepositories basicsRepositories,
              IBoxInventoryService boxInventoryService,
              ISerialNumberService serialNumberService,
              IChangeMoveBoxService changeMoveBoxService,
              ISerialNumbersRepositories serialNumbersRepositories,
-            IBackRecordRepositories backRecordRepositories)
+            IBackRecordRepositories backRecordRepositories,
+            IInStockTaskBoxService inStockTaskBoxService)
         {
             _mapper = mapper;
             _loginService = loginService;
+            _inStockTaskBoxService = inStockTaskBoxService;
             _changeMoveBoxService = changeMoveBoxService;
             _serialNumberService = serialNumberService;
             _boxInventoryService = boxInventoryService;
@@ -140,6 +143,15 @@ namespace WMS.Web.Domain.Services
             if (!boxInventoryResult.IsSuccess)
                 return boxInventoryResult;
 
+            //下架：需要解绑收货过的箱子
+            if (entity.Type == BackRecordType.InstockOff) 
+            {
+                var boxIds= entity.Details.GroupBy(x => x.BoxId).Select(x => x.Key).ToList();
+                var unBindResult= await _inStockTaskBoxService.UnBind(boxIds, isTransaction);
+                if (!unBindResult.IsSuccess)
+                    return unBindResult;
+            }
+
             //提交事务
             var isSuccess = _basicsRepositories.CommitTransaction(isRollback, _transaction);
             if (!isSuccess)