diff --git a/ZR.Service/mes/wms/WMentryWarehousing_productService.cs b/ZR.Service/mes/wms/WMentryWarehousing_productService.cs
index 7091364b..2edbbd2b 100644
--- a/ZR.Service/mes/wms/WMentryWarehousing_productService.cs
+++ b/ZR.Service/mes/wms/WMentryWarehousing_productService.cs
@@ -530,16 +530,24 @@ namespace ZR.Service.mes.wms
         /// <returns>存在返回true，不存在/异常返回false</returns>
         private bool CheckMaterialByPartNumber(string partNumber)
         {
+            bool flag = false;
             if (string.IsNullOrWhiteSpace(partNumber))
             {
-                return false;
+                return flag;
             }
             try
             {
-                bool isMaterialExist = wmMaterialService.Queryable()
-                    .Where(it => it.Partnumber == partNumber)
-                    .Any();
-                return isMaterialExist;
+                var query = wmMaterialService.Queryable()
+                    .Where(it => it.Partnumber == partNumber).ToList();
+                if (query != null && query.Any())
+                {
+                    flag = true;
+                }
+                else
+                {
+                    flag = false;
+                }
+                return flag;
             }
             catch (Exception ex)
             {