diff --git a/DOAN.Admin.WebApi/Controllers/MES/mm/MmPreparantTaskController.cs b/DOAN.Admin.WebApi/Controllers/MES/mm/MmPreparantTaskController.cs
index 33f168e..1f50bd3 100644
--- a/DOAN.Admin.WebApi/Controllers/MES/mm/MmPreparantTaskController.cs
+++ b/DOAN.Admin.WebApi/Controllers/MES/mm/MmPreparantTaskController.cs
@@ -76,7 +76,6 @@ namespace DOAN.WebApi.Controllers.MES.mm
             if (string.IsNullOrEmpty(task_code)) { return SUCCESS(null); }
             var response = preparantTaskService.GetTaskMaterialBOMContrast(task_code);
             return SUCCESS(response);
-
         }
 
         //TODO  新增任务
@@ -100,6 +99,18 @@ namespace DOAN.WebApi.Controllers.MES.mm
             return SUCCESS(response);
         }
 
+        //TODO 修改任务数量
+        [HttpPost("ModifyTask_num")]
+        public IActionResult ModifyTaskNum([FromBody] MmTaskMaterialInfoDto2  parm)
+        {
+            if(parm == null) { return SUCCESS(null);    };
+
+            int response = preparantTaskService.ModifyTaskNum(parm,HttpContext.GetName());
+            return SUCCESS(response);
+        }
+
+
+
 
     }
 }
\ No newline at end of file
diff --git a/DOAN.Model/MES/mm/Dto/MmPreparationTaskDto.cs b/DOAN.Model/MES/mm/Dto/MmPreparationTaskDto.cs
index eeb046b..8bff4a3 100644
--- a/DOAN.Model/MES/mm/Dto/MmPreparationTaskDto.cs
+++ b/DOAN.Model/MES/mm/Dto/MmPreparationTaskDto.cs
@@ -37,6 +37,7 @@ namespace DOAN.Model.MES.mm.Dto
 
 
     }
+
     /// <summary>
     /// 任务及其配料详情
     /// </summary>
diff --git a/DOAN.Model/MES/mm/Dto/MmTaskMaterialInfoDto.cs b/DOAN.Model/MES/mm/Dto/MmTaskMaterialInfoDto.cs
index 84c469f..3566851 100644
--- a/DOAN.Model/MES/mm/Dto/MmTaskMaterialInfoDto.cs
+++ b/DOAN.Model/MES/mm/Dto/MmTaskMaterialInfoDto.cs
@@ -42,6 +42,25 @@ namespace DOAN.Model.MES.mm.Dto
 
     }
 
+    /// <summary>
+    ///  修改配料任务数量
+    /// </summary>
+    public class MmTaskMaterialInfoDto2
+    {
+        /// <summary>
+        /// 任务code
+        /// </summary>
+        public string FkTaskCode { get; set; }
+        /// <summary>
+        /// 物料code
+        /// </summary>
+        public string MaterialCode { get; set; }
+        /// <summary>
+        /// 数量
+        /// </summary>
+        public decimal Quantity { get; set; }
+
+    }
 
 
     public class MmTaskMaterialInfoANDBOmDto
diff --git a/DOAN.Service/MES/mm/IService/IMmPreparantTaskService.cs b/DOAN.Service/MES/mm/IService/IMmPreparantTaskService.cs
index af91626..3281a9f 100644
--- a/DOAN.Service/MES/mm/IService/IMmPreparantTaskService.cs
+++ b/DOAN.Service/MES/mm/IService/IMmPreparantTaskService.cs
@@ -1,6 +1,7 @@
 using DOAN.Model.MES.base_;
 using DOAN.Model.MES.mm.Dto;
 using DOAN.Model.MES.product;
+using Microsoft.AspNetCore.Mvc;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -27,6 +28,8 @@ namespace DOAN.Service.MES.mm.IService
 
         int DeleteTask(string task_code);
 
+        int ModifyTaskNum(MmTaskMaterialInfoDto2 parm, string name);
+
 
     }
 }
diff --git a/DOAN.Service/MES/mm/MmPreparantTaskService.cs b/DOAN.Service/MES/mm/MmPreparantTaskService.cs
index a8a7bfe..6ca3614 100644
--- a/DOAN.Service/MES/mm/MmPreparantTaskService.cs
+++ b/DOAN.Service/MES/mm/MmPreparantTaskService.cs
@@ -8,6 +8,7 @@ using Infrastructure.Attribute;
 using Mapster;
 using Microsoft.AspNetCore.Http.HttpResults;
 using System;
+using System.Collections;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -31,7 +32,7 @@ namespace DOAN.Service.MES.mm
                   .WhereIF(!string.IsNullOrEmpty(route_code), it => it.FkRouteCode == route_code)
                   .ToList();
         }
-        
+
         /// <summary>
         /// 获取任务
         /// </summary>
@@ -177,6 +178,38 @@ namespace DOAN.Service.MES.mm
         }
 
 
+        public int ModifyTaskNum(MmTaskMaterialInfoDto2 parm, string name)
+        {
+            int result = 0;
+            MmTaskMaterialInfo info = new MmTaskMaterialInfo();
+            info.FkTaskCode = parm.FkTaskCode;
+            info.MaterialCode = parm.MaterialCode;
+            BaseMaterialList material = null;
+            if (parm.MaterialCode != null)
+            {
+                material = Context.Queryable<BaseMaterialList>().Where(it => it.Code == parm.MaterialCode).First();
+
+
+            }
+            info.MaterialName = material?.Name;
+            info.Specification = material?.Specification;
+            info.Quantity = parm.Quantity;
+
+            info.Unit = material?.Unit;
+            info.CreatedBy = name;
+            info.CreatedTime = DateTime.Now;
+            info.UpdatedBy = name;
+            info.UpdatedTime = DateTime.Now;
+            var x = Context.Storageable(info)
+                  .WhereColumns(it => new { it.FkTaskCode, it.MaterialCode }).ToStorage();
+
+
+            result += x.AsInsertable.ExecuteCommand();
+            result += x.AsUpdateable.IgnoreColumns(z => new { z.CreatedBy, z.CreatedTime, z.MaterialName, z.Specification, z.Unit }).ExecuteCommand();
+
+            return result;
+
+        }