diff --git a/build/build.component.js b/build/build.component.js
index 4fa52319e7..86d23a17e6 100644
--- a/build/build.component.js
+++ b/build/build.component.js
@@ -10,6 +10,8 @@ const typescript = require('rollup-plugin-typescript2')
 
 const deps = Object.keys(pkg.dependencies)
 
+const noElPrefixFile = /(utils|directives|hooks|locale)/
+
 const runBuild = async () => {
   let index = 0
   const pkgs = await getPackages()
@@ -52,12 +54,20 @@ const runBuild = async () => {
           || deps.some(k => new RegExp('^' + k).test(id))
       },
     }
+    const getOutFile = () => {
+      const compName = name.split('@element-plus/')[1]
+      if(noElPrefixFile.test(name)) {
+        return `lib/${compName}/index.js`
+      }
+      return `lib/el-${compName}/index.js`
+    }
     const outOptions = {
       format: 'es',
-      file: `lib/${name.split('@element-plus/')[1]}/index.js`,
+      file: getOutFile(),
       paths(id) {
         if (/^@element-plus/.test(id)) {
-          return id.replace('@element-plus', '..')
+          if (noElPrefixFile.test(id)) return id.replace('@element-plus', '..')
+          return id.replace('@element-plus/', '../el-')
         }
       },
     }
diff --git a/build/rollup.config.bundle.js b/build/rollup.config.bundle.js
index 73ea859939..98c7a9333f 100644
--- a/build/rollup.config.bundle.js
+++ b/build/rollup.config.bundle.js
@@ -21,7 +21,6 @@ export default [
       terser(),
       nodeResolve(),
       // commonjs(),
-      css(),
       vue({
         target: 'browser',
         css: false,
@@ -29,6 +28,9 @@ export default [
       }),
       typescript({
         tsconfigOverride: {
+          compilerOptions: {
+            declaration: false,
+          },
           'include': [
             'packages/**/*',
             'typings/vue-shim.d.ts',
diff --git a/packages/collapse/src/collapse-item.vue b/packages/collapse/src/collapse-item.vue
index 0e9fd5d4e2..4b3f838813 100644
--- a/packages/collapse/src/collapse-item.vue
+++ b/packages/collapse/src/collapse-item.vue
@@ -51,7 +51,7 @@
 import { defineComponent, PropType, inject, computed, ref } from 'vue'
 import { CollapseProvider } from './collapse'
 import { generateId } from '@element-plus/utils/util'
-import ElCollapseTransition from '@element-plus/transition/collapse-transition/index.vue'
+import ElCollapseTransition from '@element-plus/collapse-transition'
 
 export default defineComponent({
   name: 'ElCollapseItem',
diff --git a/packages/date-picker/src/date-picker-com/panel-date-pick.vue b/packages/date-picker/src/date-picker-com/panel-date-pick.vue
index ee2063042f..0166e626a4 100644
--- a/packages/date-picker/src/date-picker-com/panel-date-pick.vue
+++ b/packages/date-picker/src/date-picker-com/panel-date-pick.vue
@@ -159,6 +159,7 @@
 import {
   extractDateFormat,
   extractTimeFormat,
+  TimePickPanel,
 } from '@element-plus/time-picker'
 import { t } from '@element-plus/locale'
 import ElInput from '@element-plus/input'
@@ -169,7 +170,7 @@ import dayjs, { Dayjs } from 'dayjs'
 import DateTable from './basic-date-table.vue'
 import MonthTable from './basic-month-table.vue'
 import YearTable from './basic-year-table.vue'
-import TimePickPanel from '@element-plus/time-picker/src/time-picker-com/panel-time-pick.vue'
+
 import {
   defineComponent,
   computed,
diff --git a/packages/date-picker/src/date-picker-com/panel-date-range.vue b/packages/date-picker/src/date-picker-com/panel-date-range.vue
index 673fdb7c1b..c47af5ba55 100644
--- a/packages/date-picker/src/date-picker-com/panel-date-range.vue
+++ b/packages/date-picker/src/date-picker-com/panel-date-range.vue
@@ -217,7 +217,7 @@ import {
   extractDateFormat,
   extractTimeFormat,
 } from '@element-plus/time-picker'
-import TimePickPanel from '@element-plus/time-picker/src/time-picker-com/panel-time-pick.vue'
+import { TimePickPanel } from '@element-plus/time-picker'
 import { ClickOutside } from '@element-plus/directives'
 import dayjs, { Dayjs } from 'dayjs'
 import DateTable from './basic-date-table.vue'
diff --git a/packages/date-picker/src/date-picker.ts b/packages/date-picker/src/date-picker.ts
index 4e99a08717..07a54edc7e 100644
--- a/packages/date-picker/src/date-picker.ts
+++ b/packages/date-picker/src/date-picker.ts
@@ -1,5 +1,5 @@
 import { DEFAULT_FORMATS_DATE, DEFAULT_FORMATS_DATEPICKER } from '@element-plus/time-picker/src/common/constant'
-import Picker from '@element-plus/time-picker/src/common/picker.vue'
+import { CommonPicker } from '@element-plus/time-picker'
 import DatePickPanel from './date-picker-com/panel-date-pick.vue'
 import DateRangePickPanel from './date-picker-com/panel-date-range.vue'
 import MonthRangePickPanel from './date-picker-com/panel-month-range.vue'
@@ -42,7 +42,7 @@ export default {
   },
   setup(props) {
     const format = DEFAULT_FORMATS_DATEPICKER[props.type] || DEFAULT_FORMATS_DATE
-    return () => h(Picker, {
+    return () => h(CommonPicker, {
       format,
       type: props.type,
       ...props,
diff --git a/packages/locale/__test__/locale.spec.ts b/packages/locale/__test__/locale.spec.ts
index 1ac359e6b7..ca09219558 100644
--- a/packages/locale/__test__/locale.spec.ts
+++ b/packages/locale/__test__/locale.spec.ts
@@ -1,6 +1,5 @@
 import { mount } from '@vue/test-utils'
 import { t, use } from '../index'
-import localeMixin from '../mixin'
 import zhCn from '../lang/zh-cn'
 import en from '../lang/en'
 
@@ -18,13 +17,4 @@ describe('Locale', () => {
     expect(t('el.popconfirm.confirmButtonText')).toBe('确定')
     use(en)
   })
-
-  test('mixin', () => {
-    const component = {
-      template: `<p>{{ t('el.popconfirm.cancelButtonText') }}</p>`,
-      mixins: [localeMixin],
-    } as any
-    const wrapper = mount(component)
-    expect(wrapper.text()).toContain('No')
-  })
 })
diff --git a/packages/locale/mixin.ts b/packages/locale/mixin.ts
deleted file mode 100644
index 339e8a3a4d..0000000000
--- a/packages/locale/mixin.ts
+++ /dev/null
@@ -1,9 +0,0 @@
-import { t } from './index'
-
-export default {
-  methods: {
-    t(...args) {
-      return t.apply(this, args)
-    },
-  },
-}
diff --git a/packages/menu/src/menuItemGroup.vue b/packages/menu/src/menuItemGroup.vue
index 3fdea2e2a6..cf4b12972d 100644
--- a/packages/menu/src/menuItemGroup.vue
+++ b/packages/menu/src/menuItemGroup.vue
@@ -10,5 +10,3 @@ export default defineComponent({
   props: { },
 })
 </script>
-<style scoped>
-</style>
diff --git a/packages/menu/src/submenu.vue b/packages/menu/src/submenu.vue
index 338002fc04..b64aabcd34 100644
--- a/packages/menu/src/submenu.vue
+++ b/packages/menu/src/submenu.vue
@@ -100,7 +100,7 @@ import {
   onBeforeMount,
   onBeforeUnmount,
 } from 'vue'
-import ElCollapseTransition from '@element-plus/transition/collapse-transition/index.vue'
+import ElCollapseTransition from '@element-plus/collapse-transition'
 import { ISubmenuProps, RootMenuProvider, SubMenuProvider } from './menu'
 import useMenu from './useMenu'
 import ElPopper from '@element-plus/popper'
diff --git a/packages/time-picker/index.ts b/packages/time-picker/index.ts
index d2efa97489..a00d7f3c1b 100644
--- a/packages/time-picker/index.ts
+++ b/packages/time-picker/index.ts
@@ -1,9 +1,12 @@
 import { App } from 'vue'
 import TimePicker from './src/time-picker'
+import CommonPicker from './src/common/picker.vue'
+import TimePickPanel from './src/time-picker-com/panel-time-pick.vue'
 export * from './src/common/date-utils'
 
 TimePicker.install = (app: App): void => {
   app.component(TimePicker.name, TimePicker)
 }
 
+export { CommonPicker, TimePickPanel }
 export default TimePicker
diff --git a/packages/tree/src/tree-node.vue b/packages/tree/src/tree-node.vue
index d85b161efb..b59bee68c3 100644
--- a/packages/tree/src/tree-node.vue
+++ b/packages/tree/src/tree-node.vue
@@ -77,7 +77,7 @@
 </template>
 <script lang='ts'>
 import { defineComponent, getCurrentInstance, ref, watch, nextTick, inject, provide, PropType, ComponentInternalInstance } from 'vue'
-import ElCollapseTransition from '@element-plus/transition/collapse-transition/index.vue'
+import ElCollapseTransition from '@element-plus/collapse-transition'
 import ElCheckbox from '@element-plus/checkbox'
 import NodeContent from './tree-node-content.vue'
 import { getNodeKey as getNodeKeyUtil } from './model/util'
diff --git a/public/favicon.ico b/public/favicon.ico
deleted file mode 100644
index df36fcfb72..0000000000
Binary files a/public/favicon.ico and /dev/null differ