diff --git a/src/WMS.Web.Domain/Services/BackRecordService.cs b/src/WMS.Web.Domain/Services/BackRecordService.cs
index 42471ca9..2b9a0ed8 100644
--- a/src/WMS.Web.Domain/Services/BackRecordService.cs
+++ b/src/WMS.Web.Domain/Services/BackRecordService.cs
@@ -73,8 +73,13 @@ namespace WMS.Web.Domain.Services
             //回退上下架：不能扫同样的箱,按箱入库时候
             if (dto.Details != null && dto.Details.Count != 0 && dto.Method== (int)InventoryInOutMethod.Box)
             {
-                if (dto.Details.Select(x => x.BoxId).Distinct().Count() != dto.Details.Select(x => x.BoxId).Count())
-                    return Result<InStock>.ReFailure(ResultCodes.BoxOutStockTaskBoxError);
+                var mIds = dto.Details.GroupBy(g => g.MaterialNumber).Select(s => s.Key).ToList();
+                foreach (var m in mIds)
+                {
+                    var d_boxIds = dto.Details.Where(w => w.MaterialNumber == m).Select(s => s.BoxId);
+                    if (d_boxIds.Distinct().Count() != d_boxIds.Count())
+                        return Result.ReFailure(ResultCodes.BoxOutStockTaskBoxError);
+                }
             }
             IDbContextTransaction _transaction = _basicsRepositories.GetTransaction();
             bool isRollback = false;