diff --git a/README.md b/README.md
index fbf1f4e..625b91e 100644
--- a/README.md
+++ b/README.md
@@ -73,7 +73,9 @@ A share link will be automatically generated after successful upload
 ![](./doc/5.png)
 
 
-
+## Banner URL[option]
+banner url must be a image url like: https://i.imgur.com/xxx.jpg
+if you don't want to use banner, leave it blank
 
 # Buy me a cup of coffee.
 
diff --git a/main.ts b/main.ts
index fff46fd..e42330e 100644
--- a/main.ts
+++ b/main.ts
@@ -187,8 +187,8 @@ class SampleSettingTab extends PluginSettingTab {
 			);
 			
 			new Setting(containerEl)
-			.setName("Banner Url")
-			.setDesc("page banner url")
+			.setName("Banner url(optional)")
+			.setDesc("page banner url(optional), default is empty, if you want to show a banner, please enter the url(like:https://raw.githubusercontent.com/EasyChris/obsidian-to-notion/ae7a9ac6cf427f3ca338a409ce6967ced9506f12/doc/2.png)")
 			.addText((text) =>
 				text
 					.setPlaceholder("Enter banner pic url: ")