diff --git a/src/mixins/locale.js b/src/mixins/locale.js
index 3aed378..56cd614 100644
--- a/src/mixins/locale.js
+++ b/src/mixins/locale.js
@@ -1,3 +1,6 @@
+import Languages from '@/locale/languages'
+
+const defaultLang = Languages.zh
 
 export default {
   methods: {
@@ -10,21 +13,20 @@ export default {
           name = component.$options.name
         }
       }
-      if (component && component.language) {
-        const arr = path.split('.')
-        let current = component.language
-        let value
-        for (let i = 0, len = arr.length; i < len; i++) {
-          const prop = arr[i]
-          value = current[prop]
-          if (i === len - 1) {
-            return value
-          }
-          if (!value) {
-            return ''
-          }
-          current = value
+      const lang = component && component.language || defaultLang
+      const arr = path.split('.')
+      let current = lang
+      let value
+      for (let i = 0, len = arr.length; i < len; i++) {
+        const prop = arr[i]
+        value = current[prop]
+        if (i === len - 1) {
+          return value
         }
+        if (!value) {
+          return ''
+        }
+        current = value
       }
       return ''
     }
diff --git a/test/index.spec.js b/test/index.spec.js
index fb31a64..cba972c 100644
--- a/test/index.spec.js
+++ b/test/index.spec.js
@@ -1,15 +1,11 @@
 import Vue from 'vue'
 import { mount, shallowMount } from '@vue/test-utils'
-import { use } from '../src/locale/index'
 import DatePicker from '../src/index.vue'
 import CalendarPanel from '../src/calendar.vue'
-
 import DatePanel from '../src/panel/date'
 import TimePanel from '../src/panel/time'
 import YearPanel from '../src/panel/year'
 
-use('zh')
-
 let wrapper
 
 afterEach(() => {
@@ -191,7 +187,7 @@ describe('datepicker', () => {
     expect(el.getAttribute('placeholder')).toBe('hehe')
   })
 
-  it.only('prop: lang', () => {
+  it('prop: lang', () => {
     wrapper = mount(DatePicker, {
       propsData: {
         lang: 'en',