diff --git a/packages/install-site.js b/packages/install-site.js
index 626a7e0..2e2628b 100644
--- a/packages/install-site.js
+++ b/packages/install-site.js
@@ -1,9 +1,9 @@
 import { inject } from 'vue'
-import { Screen } from './plugins'
+import { Fullscreen, Screen } from './plugins'
 
 const BaseKey = Symbol('Site')
 
-const defaultPlugins = [Screen]
+const defaultPlugins = [Fullscreen, Screen]
 
 function install (app, options = {}) {
     const $site = {
diff --git a/packages/plugins/fullscreen/index.js b/packages/plugins/fullscreen/index.js
index cecbe33..2b6e205 100644
--- a/packages/plugins/fullscreen/index.js
+++ b/packages/plugins/fullscreen/index.js
@@ -1,4 +1,71 @@
 import { createReactivePlugin } from '../../utils/create'
 
+const native = {
+    request: ['requestFullscreen', 'msRequestFullscreen', 'mozRequestFullScreen', 'webkitRequestFullscreen'].find((request) => !!document.documentElement[request]),
+    exit: ['exitFullscreen', 'msExitFullscreen', 'mozCancelFullScreen', 'webkitExitFullscreen'].find((exit) => !!document[exit])
+}
+
+function getFullElement () {
+    return (document.fullscreenElement || document.mozFullScreenElement || document.webkitFullscreenElement || document.msFullscreenElement || null)
+}
+
+function promisify (target, event) {
+    try {
+        const result = target[event]()
+        return result || Promise.resolve()
+    } catch (err) {
+        return Promise.reject(err)
+    }
+}
+
+export default createReactivePlugin({
+    isActive: false,
+    activeEl: null
+}, {
+    request (target) {
+        const el = target || document.documentElement
+        if (this.activeEl === el) return Promise.resolve()
+        // --
+        const result = this.activeEl !== null && el.contains(this.activeEl) === true
+            ? this.exit()
+            : Promise.resolve()
+
+        return result.finally(() => promisify(el, native.request))
+    },
+    exit () {
+        return this.isActive === true
+            ? promisify(document, native.exit)
+            : Promise.resolve()
+    },
+    toggle (target) {
+        return this.isActive === true
+            ? this.exit()
+            : this.request(target)
+    },
+    install (app, options, $site) {
+        $site && ($site.fullscreen = this)
+
+        const onUpdateActiveEl = () => {
+            this.activeEl = this.isActive === false ? null : getFullElement()
+        }
+
+        const onChange = () => {
+            this.isActive = this.isActive === false
+            onUpdateActiveEl()
+        }
+
+        this.isActive = !!getFullElement()
+        this.isActive === true && onUpdateActiveEl()
+
+        // ;['fullscreenchange', 'MSFullscreenChange', 'mozfullscreenchange', 'webkitfullscreenchange'].forEach((type) => {
+        //     addEvt(document, type, onChange)
+        // })
+
+        ;['onfullscreenchange', 'onmsfullscreenchange', 'onmozfullscreenchange', 'onwebkitfullscreenchange'].forEach((event) => {
+            document[event] = onChange
+        })
+    }
+})
+
 
 
diff --git a/packages/plugins/index.js b/packages/plugins/index.js
index 49d23dd..33fe241 100644
--- a/packages/plugins/index.js
+++ b/packages/plugins/index.js
@@ -1,5 +1,7 @@
+import Fullscreen from './fullscreen'
 import Screen from './screen'
 
 export {
+    Fullscreen,
     Screen
 }
diff --git a/src/layout/components/fullscreen/index.jsx b/src/layout/components/fullscreen/index.jsx
index 940cbbd..e554274 100644
--- a/src/layout/components/fullscreen/index.jsx
+++ b/src/layout/components/fullscreen/index.jsx
@@ -1,7 +1,6 @@
-import { defineComponent, onBeforeUnmount, onMounted, ref, unref } from 'vue'
+import { computed, defineComponent, unref } from 'vue'
 import { ExitFullscreenOutlined, FullscreenOutlined } from '@/components/icon'
-import native from './screenfull'
-import { addEvt, cleanEvt } from '@site/utils/event'
+import { useSite } from '@site'
 import { useConfigInject } from '@site/utils/extend'
 import useStyle from './style'
 
@@ -10,41 +9,19 @@ export default defineComponent({
     setup (props, { attrs }) {
         const { prefixCls } = useConfigInject('pro-fullscreen', props)
         const [wrapSSR, hashId] = useStyle(prefixCls)
+        const $site = useSite()
 
-        const { fullscreenElement, exitFullscreen, requestFullscreen, fullscreenchange } = native
+        const isActive = computed(() => $site.fullscreen.isActive)
 
-        const fullest = ref(false)
-
-        function onChange () {
-            fullest.value = !unref(fullest)
-        }
-
-        function isFullscreen () {
-            return fullscreenElement && !!(document[fullscreenElement])
+        function onClick () {
+            $site.fullscreen.toggle()
         }
 
-        function handleFullscreen () {
-            if (unref(fullest)) {
-                exitFullscreen && document[exitFullscreen]()
-            } else {
-                requestFullscreen && document.body[requestFullscreen]()
-            }
-        }
-
-        onMounted(() => {
-            fullest.value = isFullscreen()
-            fullscreenchange && addEvt(document, fullscreenchange, onChange, false)
-        })
-
-        onBeforeUnmount(() => {
-            fullscreenchange && cleanEvt(document, fullscreenchange, onChange, false)
-        })
-
         return () => {
             return wrapSSR(
                 <div class={[prefixCls.value, hashId.value]} {...attrs}>
-                    <div class={`${prefixCls.value}-content`} onClick={handleFullscreen}>
-                        {unref(fullest) ? <ExitFullscreenOutlined/> : <FullscreenOutlined/>}
+                    <div class={`${prefixCls.value}-content`} onClick={onClick}>
+                        {unref(isActive) ? <ExitFullscreenOutlined/> : <FullscreenOutlined/>}
                     </div>
                 </div>
             )
diff --git a/src/layout/components/fullscreen/screenfull.js b/src/layout/components/fullscreen/screenfull.js
deleted file mode 100644
index 532a9f4..0000000
--- a/src/layout/components/fullscreen/screenfull.js
+++ /dev/null
@@ -1,21 +0,0 @@
-import { head, reduce, set } from 'lodash-es'
-
-const methodMap = [
-    ['requestFullscreen', 'exitFullscreen', 'fullscreenElement', 'fullscreenEnabled', 'fullscreenchange', 'fullscreenerror'],
-    ['webkitRequestFullscreen', 'webkitExitFullscreen', 'webkitFullscreenElement', 'webkitFullscreenEnabled', 'webkitfullscreenchange', 'webkitfullscreenerror'],
-    ['webkitRequestFullScreen', 'webkitCancelFullScreen', 'webkitCurrentFullScreenElement', 'webkitCancelFullScreen', 'webkitfullscreenchange', 'webkitfullscreenerror'],
-    ['mozRequestFullScreen', 'mozCancelFullScreen', 'mozFullScreenElement', 'mozFullScreenEnabled', 'mozfullscreenchange', 'mozfullscreenerror'],
-    ['msRequestFullscreen', 'msExitFullscreen', 'msFullscreenElement', 'msFullscreenEnabled', 'MSFullscreenChange', 'MSFullscreenError']
-]
-
-const methods = methodMap.find((list) => {
-    const exitFullscreenMethod = list[1]
-    return exitFullscreenMethod in document
-})
-
-const defaultMethod = head(methodMap)
-const native = reduce(methods || [], (result, method, key) => {
-    return set(result, defaultMethod[key], method)
-}, {})
-
-export default native