diff --git a/ZR.Service/mes/mm/MaterialInputService.cs b/ZR.Service/mes/mm/MaterialInputService.cs
index ef1b43b6..dc6a300a 100644
--- a/ZR.Service/mes/mm/MaterialInputService.cs
+++ b/ZR.Service/mes/mm/MaterialInputService.cs
@@ -21,6 +21,7 @@ using ZR.Model;
 using ZR.Model.MES.wms;
 using System.Text.Json;
 using Infrastructure;
+using ZR.Repository;
 
 namespace ZR.Service.mes.mm
 {
@@ -126,7 +127,7 @@ namespace ZR.Service.mes.mm
             }
 
 
-            return WorkorderList.Where(it => it.PreviousNumber > 0).ToList();
+            return WorkorderList.Where(it => it.PreviousNumber > 0).Skip(1).Take(1).ToList();
         }
 
         /// <summary>