diff --git a/framework/src/Volo.Abp.UI.Navigation/Volo/Abp/Ui/Navigation/ApplicationMenuGroup.cs b/framework/src/Volo.Abp.UI.Navigation/Volo/Abp/Ui/Navigation/ApplicationMenuGroup.cs
index 09cc9d15b6..1f4b4ac871 100644
--- a/framework/src/Volo.Abp.UI.Navigation/Volo/Abp/Ui/Navigation/ApplicationMenuGroup.cs
+++ b/framework/src/Volo.Abp.UI.Navigation/Volo/Abp/Ui/Navigation/ApplicationMenuGroup.cs
@@ -63,12 +63,12 @@ public class ApplicationMenuGroup
 
     private string GetDefaultElementId()
     {
-        return "MenuGroup" + Name;
+        return "MenuGroup_" + Name;
     }
 
     private string NormalizeElementId(string elementId)
     {
-        return elementId?.Replace("_", "").Replace(".", "");
+        return elementId?.Replace(".", "");
     }
 
     public override string ToString()
diff --git a/framework/src/Volo.Abp.UI.Navigation/Volo/Abp/Ui/Navigation/ApplicationMenuItem.cs b/framework/src/Volo.Abp.UI.Navigation/Volo/Abp/Ui/Navigation/ApplicationMenuItem.cs
index 9da6e09d16..b9503874cc 100644
--- a/framework/src/Volo.Abp.UI.Navigation/Volo/Abp/Ui/Navigation/ApplicationMenuItem.cs
+++ b/framework/src/Volo.Abp.UI.Navigation/Volo/Abp/Ui/Navigation/ApplicationMenuItem.cs
@@ -155,12 +155,12 @@ public class ApplicationMenuItem : IHasMenuItems, IHasSimpleStateCheckers<Applic
 
     private string GetDefaultElementId()
     {
-        return "MenuItem" + Name;
+        return "MenuItem_" + Name;
     }
     
     private string NormalizeElementId(string elementId)
     {
-        return elementId?.Replace("_", "").Replace(".", "");
+        return elementId?.Replace(".", "");
     }
 
     public override string ToString()