diff --git a/Api/Ewide.Core/Service/Menu/Dto/MenuInput.cs b/Api/Ewide.Core/Service/Menu/Dto/MenuInput.cs
index affd554..4fd0c25 100644
--- a/Api/Ewide.Core/Service/Menu/Dto/MenuInput.cs
+++ b/Api/Ewide.Core/Service/Menu/Dto/MenuInput.cs
@@ -10,7 +10,7 @@ namespace Ewide.Core.Service
         /// <summary>
         /// 父Id
         /// </summary>
-        public virtual string Pid { get; set; }
+        public virtual string Pid { get; set; } = System.Guid.Empty.ToString();
 
         /// <summary>
         /// 名称