diff --git a/src/i18n/index.js b/src/i18n/index.js
index d2fe90ec..0f5693e5 100644
--- a/src/i18n/index.js
+++ b/src/i18n/index.js
@@ -7,6 +7,7 @@ export default new VueI18n({
   locale: 'CN',
   messages: {
     'CN': require('./lang/cn'),
+    'JA': require('./lang/ja'),
     'EN': require('./lang/en')
   }
 })
diff --git a/src/i18n/lang/ja.js b/src/i18n/lang/ja.js
new file mode 100644
index 00000000..ff41adea
--- /dev/null
+++ b/src/i18n/lang/ja.js
@@ -0,0 +1,3 @@
+export const message = {
+  hello: 'こんにちは、世界'
+}
diff --git a/src/pages/demo/plugins/vue-i18n/components/DemoI18nControl.vue b/src/pages/demo/plugins/vue-i18n/components/DemoI18nControl.vue
index 8a377464..76d11275 100644
--- a/src/pages/demo/plugins/vue-i18n/components/DemoI18nControl.vue
+++ b/src/pages/demo/plugins/vue-i18n/components/DemoI18nControl.vue
@@ -2,6 +2,7 @@
   <div class="dd-mb">
     <el-radio-group v-model="lang" @change="handleChange">
       <el-radio-button label="CN">中文</el-radio-button>
+      <el-radio-button label="JA">日本語</el-radio-button>
       <el-radio-button label="EN">English</el-radio-button>
     </el-radio-group>
   </div>