diff --git a/README.en.md b/README.en.md
index 02cb42586a856c828d0f11236082cfdc234f1375..444ca4c437e054b0bb073edae4e02f31da7b01ef 100644
--- a/README.en.md
+++ b/README.en.md
@@ -12,6 +12,7 @@ This sample focuses on illustrating the interactions between ArkTS and HTML5. It
 1. On the home page of the application, touch the button to access the recharge page.
 2. Touch the contact icon on the right to display the Contacts screen. Select a contact, and the contact information is returned asynchronously.
 3. Select an amount and touch the recharge button at the bottom. A toast is displayed.
+The ArkTS supports only asynchronous interaction with the H5.
 
 ## Project Directory
 
diff --git a/README.md b/README.md
index d2e9558e0ad6a6dc5ea6dfe3834833b5ec810a9a..bf3c5f65601a7424bf00f6faa02124b73f2d4a7a 100644
--- a/README.md
+++ b/README.md
@@ -12,6 +12,7 @@
 1. 在应用首页，点击按钮进入话费充值页面。
 2. 点击右侧联系人图标拉起系统通讯录页面，选中联系人后异步返回联系人信息。
 3. 选择金额点击底部充值按钮会出现toast提示。
+4. ArkTS侧与H5侧只支持异步交互。
 
 ## 工程目录