diff --git a/components/_util/vnode.js b/components/_util/vnode.js
index c4cdb3e39..20d859baf 100644
--- a/components/_util/vnode.js
+++ b/components/_util/vnode.js
@@ -51,7 +51,7 @@ export function cloneVNodes (vnodes, deep) {
   return res
 }
 
-export function cloneElement (n, nodeProps, clone) {
+export function cloneElement (n, nodeProps, deep) {
   let ele = n
   if (Array.isArray(n)) {
     ele = filterEmpty(n)[0]
@@ -59,7 +59,7 @@ export function cloneElement (n, nodeProps, clone) {
   if (!ele) {
     return null
   }
-  const node = clone ? cloneVNode(ele, true) : ele
+  const node = cloneVNode(ele, deep)
   const { props = {}, key, on = {}, children } = nodeProps
   const data = node.data || {}
   const { style = data.style,
diff --git a/components/auto-complete/InputElement.vue b/components/auto-complete/InputElement.vue
index 43c34f2e3..13decdb1c 100644
--- a/components/auto-complete/InputElement.vue
+++ b/components/auto-complete/InputElement.vue
@@ -1,6 +1,6 @@
 <script>
 import PropTypes from '../_util/vue-types'
-import { cloneElement, cloneVNode } from '../_util/vnode'
+import { cloneElement } from '../_util/vnode'
 function chaining (...fns) {
   return function (...args) { // eslint-disable-line
     // eslint-disable-line
@@ -31,7 +31,7 @@ export default {
   render () {
     const { $slots = {}, $listeners = {}, $props = {}, $attrs = {}} = this
     const value = $props.value === undefined ? '' : $props.value
-    const children = cloneVNode($slots.default[0])
+    const children = $slots.default[0]
     const { componentOptions = {}} = $slots.default[0]
     const { listeners = {}} = componentOptions
     const newEvent = { ...listeners }
diff --git a/components/auto-complete/demo/custom.md b/components/auto-complete/demo/custom.md
index 554dbcecd..a1916f9cc 100644
--- a/components/auto-complete/demo/custom.md
+++ b/components/auto-complete/demo/custom.md
@@ -21,7 +21,7 @@ Customize Input Component
       placeholder="input here"
       class="custom"
       style="height: 50px"
-      @keypress="handleKeyPress"
+      @keydown="handleKeyPress"
     />
   </a-auto-complete>
 </template>
diff --git a/components/dropdown/src/Dropdown.vue b/components/dropdown/src/Dropdown.vue
index 7abe86f0c..4c3bddd86 100644
--- a/components/dropdown/src/Dropdown.vue
+++ b/components/dropdown/src/Dropdown.vue
@@ -4,7 +4,7 @@ import Trigger from '../../trigger'
 import placements from './placements'
 import { hasProp, getEvents } from '../../_util/props-util'
 import BaseMixin from '../../_util/BaseMixin'
-import { cloneElement, cloneVNode } from '../../_util/vnode'
+import { cloneElement } from '../../_util/vnode'
 
 export default {
   mixins: [BaseMixin],
@@ -70,7 +70,7 @@ export default {
     getMenuElement () {
       const { onClick, prefixCls, $slots } = this
       this.childOriginEvents = getEvents($slots.overlay[0])
-      return cloneElement(cloneVNode($slots.overlay[0]), {
+      return cloneElement($slots.overlay[0], {
         props: {
           prefixCls: `${prefixCls}-menu`,
         },
diff --git a/components/trigger/index.vue b/components/trigger/index.vue
index f94a048a2..e3f8b1878 100644
--- a/components/trigger/index.vue
+++ b/components/trigger/index.vue
@@ -9,7 +9,7 @@ import warning from '../_util/warning'
 import Popup from './Popup'
 import { getAlignFromPlacement, getPopupClassNameFromAlign, noop } from './utils'
 import BaseMixin from '../_util/BaseMixin'
-import { cloneElement, cloneVNode } from '../_util/vnode'
+import { cloneElement } from '../_util/vnode'
 
 function returnEmptyString () {
   return ''
@@ -498,8 +498,8 @@ export default {
     if (children.length > 1) {
       warning(false, 'Trigger $slots.default.length > 1, just support only one default', true)
     }
-    const child = cloneVNode(children[0])
-    this.childOriginEvents = getEvents(children[0])
+    const child = children[0]
+    this.childOriginEvents = getEvents(child)
     const newChildProps = {
       props: {},
       on: {},