diff --git a/src/components/menu-bar/menu-bar.jsx b/src/components/menu-bar/menu-bar.jsx
index 253d961..80c33d2 100644
--- a/src/components/menu-bar/menu-bar.jsx
+++ b/src/components/menu-bar/menu-bar.jsx
@@ -412,7 +412,9 @@ class MenuBar extends React.Component {
                             />
                         </div>
                         )}
-                        {(this.props.canChangeLanguage) && (<div
+                        {(this.props.canChangeLanguage && 
+                        (window.scratchConfig && window.scratchConfig.menuBar && window.scratchConfig.menuBar.languageButton && 
+                                        window.scratchConfig.menuBar.languageButton.show)) && (<div
                             className={classNames(styles.menuBarItem, styles.hoverable, styles.languageMenu)}
                         >
                             <div>
diff --git a/src/lib/app-state-hoc.jsx b/src/lib/app-state-hoc.jsx
index f7afcb9..75bb2dd 100644
--- a/src/lib/app-state-hoc.jsx
+++ b/src/lib/app-state-hoc.jsx
@@ -31,7 +31,15 @@ const AppStateHOC = function (WrappedComponent, localesOnly) {
             let enhancer;
 
             let initializedLocales = localesInitialState;
-            const locale = detectLocale(Object.keys(locales));
+            let locale;
+            if(window.scratchConfig && window.scratchConfig.menuBar && window.scratchConfig.menuBar.languageButton && 
+                window.scratchConfig.menuBar.languageButton.defaultLanguage){
+                window.scratchConfig.menuBar.languageButton.defaultLanguage
+                locale = window.scratchConfig.menuBar.languageButton.defaultLanguage
+            }else{
+                locale = detectLocale(Object.keys(locales));
+            }
+            
             if (locale !== 'en') {
                 initializedLocales = initLocale(initializedLocales, locale);
             }
@@ -103,6 +111,8 @@ const AppStateHOC = function (WrappedComponent, localesOnly) {
                 var event = new CustomEvent('setFullScreen', {"detail": {isFullScreen: isFullScreen}});
                 document.dispatchEvent(event);
             }
+
+            
         }
         componentDidUpdate (prevProps) {
             if (localesOnly) return;
diff --git a/src/playground/index.ejs b/src/playground/index.ejs
index 76c4e24..947cc49 100644
--- a/src/playground/index.ejs
+++ b/src/playground/index.ejs
@@ -28,6 +28,11 @@
         style: {
           background: 'hsla(215, 100%, 65%, 1)',
         },
+        //切换语言按钮
+        languageButton:{
+          show: true, //是否显示
+          defaultLanguage: 'zh-cn' //默认语言 en zh-cn zh-tw
+        },
         //新建按钮
         newButton:{
           show: true, //是否显示