diff --git a/src/BarCode.Web.Api/wwwroot/BarCode.Web.Core.xml b/src/BarCode.Web.Api/wwwroot/BarCode.Web.Core.xml
index 278a8c7..ac4ceee 100644
--- a/src/BarCode.Web.Api/wwwroot/BarCode.Web.Core.xml
+++ b/src/BarCode.Web.Api/wwwroot/BarCode.Web.Core.xml
@@ -3825,6 +3825,11 @@
             操作(序列号)
             </summary>
         </member>
+        <member name="T:BarCode.Web.Core.Dto.SerialNumbers.specifications">
+            <summary>
+            specifications
+            </summary>
+        </member>
         <member name="T:BarCode.Web.Core.Dto.SingleData.IdRequest">
             <summary>
             ID请求对象
diff --git a/src/BarCode.Web.Core/Dto/SerialNumbers/UpdateMaterialRequest.cs b/src/BarCode.Web.Core/Dto/SerialNumbers/UpdateMaterialRequest.cs
index a9aff42..9a0ef6f 100644
--- a/src/BarCode.Web.Core/Dto/SerialNumbers/UpdateMaterialRequest.cs
+++ b/src/BarCode.Web.Core/Dto/SerialNumbers/UpdateMaterialRequest.cs
@@ -1,4 +1,5 @@
-using System;
+using BarCode.Web.Core.Dto.Box;
+using System;
 using System.Collections.Generic;
 using System.ComponentModel.DataAnnotations;
 using System.Linq;
@@ -22,11 +23,29 @@ namespace BarCode.Web.Core.Dto.SerialNumbers
         /// </summary>
         [Required(ErrorMessage = "物料编码不能为空")]
         public string MaterialNumber { get; set; } = string.Empty;
-        public string specifications { get; set; } = string.Empty;
+        /// <summary>
+        /// 物料规格
+        /// </summary>
+        public List<Specifications> specifications { get; set; } = new List<Specifications>();
 
         /// <summary>
         /// 操作(序列号)
         /// </summary>
         public List<string> SerialNumbers { get; set; } = new List<string>();
     }
+    /// <summary>
+    /// specifications
+    /// </summary>
+    public class Specifications
+    {
+        /// <summary>
+        /// serialNumber
+        /// </summary>
+        public string serialNumber { get; set; } = string.Empty;
+        /// <summary>
+        /// old_Specification
+        /// </summary>
+        public string old_Specification { get; set; } = string.Empty;
+    }
+
 }
diff --git a/src/BarCode.Web.Domain/Services/SerialNumberService.cs b/src/BarCode.Web.Domain/Services/SerialNumberService.cs
index 12018dd..bf34a04 100644
--- a/src/BarCode.Web.Domain/Services/SerialNumberService.cs
+++ b/src/BarCode.Web.Domain/Services/SerialNumberService.cs
@@ -854,7 +854,7 @@ namespace BarCode.Web.Domain.Services
             //修改物料
             foreach (var s in serialNumbers)
             {
-                var res = s.UpdateMaterial(dto.MaterialNumber,dto.specifications);// _erpBasicDataExtendService.GetMaterialSpecifications(materials, dto.MaterialNumber));
+                var res = s.UpdateMaterial(dto.MaterialNumber, _erpBasicDataExtendService.GetMaterialSpecifications(materials, s.MaterialNumber));// _erpBasicDataExtendService.GetMaterialSpecifications(materials, dto.MaterialNumber));
                 if (!res.IsSuccess) return res;
             }
             generateRecord.UpdateMaterial();