diff --git a/src/BarCode.Web.Domain/Services/SerialNumberService.cs b/src/BarCode.Web.Domain/Services/SerialNumberService.cs
index f0fcf77..8053e60 100644
--- a/src/BarCode.Web.Domain/Services/SerialNumberService.cs
+++ b/src/BarCode.Web.Domain/Services/SerialNumberService.cs
@@ -852,12 +852,25 @@ namespace BarCode.Web.Domain.Services
             //    return Result.ReFailure($"序列号{string.Join(",", exec_m)}对应物料跟需要修改的物料一致", 611007);
             //修改物料
 
+            //修改物料
+            foreach (var s in serialNumbers)
+            {
+                foreach(var y in dto.specifications)
+                {
+                    if(s.SerialNumber==y.serialNumber)
+                    {
+                        s.old_Specifications=y.old_Specification;
+                    }
+                }
+
+            }
+
             //修改物料
             foreach (var s in serialNumbers)
             {
 
                 //var res = s.UpdateMaterial(dto.MaterialNumber, _erpBasicDataExtendService.GetMaterialName(materials, dto.MaterialNumber), _erpBasicDataExtendService.GetMaterialSpecifications(materials, dto.MaterialNumber), _erpBasicDataExtendService.GetMaterialBarCode(materials, dto.MaterialNumber), _erpBasicDataExtendService.GetMaterialSpecifications(materials, s.MaterialNumber));// _erpBasicDataExtendService.GetMaterialSpecifications(materials, dto.MaterialNumber));
-                var res = s.UpdateMaterial(dto.MaterialNumber, _erpBasicDataExtendService.GetMaterialName(materials, dto.MaterialNumber), _erpBasicDataExtendService.GetMaterialSpecifications(materials, dto.MaterialNumber), _erpBasicDataExtendService.GetMaterialBarCode(materials, dto.MaterialNumber), s.Specifications);// _erpBasicDataExtendService.GetMaterialSpecifications(materials, dto.MaterialNumber));
+                var res = s.UpdateMaterial(dto.MaterialNumber, _erpBasicDataExtendService.GetMaterialName(materials, dto.MaterialNumber), _erpBasicDataExtendService.GetMaterialSpecifications(materials, dto.MaterialNumber), _erpBasicDataExtendService.GetMaterialBarCode(materials, dto.MaterialNumber), s.old_Specifications);// _erpBasicDataExtendService.GetMaterialSpecifications(materials, dto.MaterialNumber));
                 if (!res.IsSuccess) return res;
             }
             generateRecord.UpdateMaterial();