diff --git a/DOAN.Admin.WebApi/Controllers/Mobile/PreparationTaskController.cs b/DOAN.Admin.WebApi/Controllers/Mobile/PreparationTaskController.cs
index bcd8cb0..ec2621c 100644
--- a/DOAN.Admin.WebApi/Controllers/Mobile/PreparationTaskController.cs
+++ b/DOAN.Admin.WebApi/Controllers/Mobile/PreparationTaskController.cs
@@ -114,9 +114,9 @@ namespace DOAN.Admin.Mobile.Controllers
         }
         //TODO 提交前校验 物料是否在指定日期 指定线内
         [HttpPost("check_material_isin_date_and_line")]
-        public IActionResult  CheckMaterialIsInDateAndLine([FromBody]CheckMaterialDto checkMaterial)
+        public IActionResult CheckMaterialIsInDateAndLine([FromBody] CheckMaterialDto checkMaterial)
         {
-            if(checkMaterial == null|| string.IsNullOrEmpty(checkMaterial.LineCode)|| string.IsNullOrEmpty(checkMaterial.LineCode)|| checkMaterial.HandelDate<DateTime.MinValue.AddYears(1)) throw new CustomException("请求参数错误");
+            if (checkMaterial == null || string.IsNullOrEmpty(checkMaterial.LineCode) || string.IsNullOrEmpty(checkMaterial.LineCode) || checkMaterial.HandelDate < DateTime.MinValue.AddYears(1)) throw new CustomException("请求参数错误");
 
 
             var response = preparationTask.CheckMaterialIsInDateAndLine(checkMaterial);
@@ -143,7 +143,7 @@ namespace DOAN.Admin.Mobile.Controllers
         }
         //TODO 删除任务
         [HttpGet("delete_task")]
-        public IActionResult DeleteTask(string  task_code)
+        public IActionResult DeleteTask(string task_code)
         {
             if (string.IsNullOrEmpty(task_code)) throw new CustomException("请求参数错误");
             var response = preparationTask.DeletePreparationMaterialTask(task_code);
@@ -156,13 +156,24 @@ namespace DOAN.Admin.Mobile.Controllers
         [HttpGet("delete_preparation_material_info")]
         public IActionResult DeletePreparationMaterialInfo(string id)
         {
-            if(string.IsNullOrEmpty(id))  throw new CustomException("请求参数错误");
+            if (string.IsNullOrEmpty(id)) throw new CustomException("请求参数错误");
 
             var response = preparationTask.DeletePreparationMaterialInfo(id);
 
             return SUCCESS(response);
         }
 
+        //TODO 修改备料任务详情数量
+        [HttpGet("update_preparation_material_num")]
+        public IActionResult UpdatePreParationMaterialNum(string id, decimal num)
+        {
+            if (string.IsNullOrEmpty(id)) throw new CustomException("请求参数错误");
+
+            var response = preparationTask.UpdatePreParationMaterialNum(id,num);
+
+            return SUCCESS(response);
+        }
+
 
         #endregion
 
diff --git a/DOAN.Service/Mobile/IService/IPreparationTaskService.cs b/DOAN.Service/Mobile/IService/IPreparationTaskService.cs
index ad5a848..3849f54 100644
--- a/DOAN.Service/Mobile/IService/IPreparationTaskService.cs
+++ b/DOAN.Service/Mobile/IService/IPreparationTaskService.cs
@@ -37,6 +37,7 @@ namespace DOAN.Service.Mobile.IService
 
         int DeletePreparationMaterialTask(string task_code);
         int DeletePreparationMaterialInfo(string id);
+        int UpdatePreParationMaterialNum(string id, decimal num);
 
     }
 }
diff --git a/DOAN.Service/Mobile/PreparationTaskService.cs b/DOAN.Service/Mobile/PreparationTaskService.cs
index eab6ff3..f124ae1 100644
--- a/DOAN.Service/Mobile/PreparationTaskService.cs
+++ b/DOAN.Service/Mobile/PreparationTaskService.cs
@@ -251,6 +251,11 @@ namespace DOAN.Service.Mobile
         {
             return Context.Deleteable<MmTaskMaterialInfoByLine>().Where(it => it.Id == id).ExecuteCommand();
         }
+
+        public int UpdatePreParationMaterialNum(string id, decimal num)
+        {
+            return Context.Updateable<MmTaskMaterialInfoByLine>().Where(it => it.Id == id).SetColumns(it=>it.Quantity==num).ExecuteCommand();
+        }
     }
 
 }