diff --git a/components/notification/index.tsx b/components/notification/index.tsx
index 311a954be5..2adeca53d1 100755
--- a/components/notification/index.tsx
+++ b/components/notification/index.tsx
@@ -54,7 +54,7 @@ export interface ArgsProps {
   placement?: notificationPlacement;
   style?: string;
   className?: string;
-  type: string;
+  type?: string;
 }
 
 export interface ConfigProps {