diff --git a/miniprogram/page/component/pages/checkbox/checkbox.js b/miniprogram/page/component/pages/checkbox/checkbox.js
index 143ed309..5c3c1917 100644
--- a/miniprogram/page/component/pages/checkbox/checkbox.js
+++ b/miniprogram/page/component/pages/checkbox/checkbox.js
@@ -9,7 +9,7 @@ Page({
   data: {
     items: [
       {value: 'USA', name: '美国'},
-      {value: 'CHN', name: '中国', checked: 'true'},
+      {value: 'CHN', name: '中国', checked: true},
       {value: 'BRA', name: '巴西'},
       {value: 'JPN', name: '日本'},
       {value: 'ENG', name: '英国'},