diff --git a/flow/weex.js b/flow/weex.js
index 2f32bf5c699..cef6f0ba2f7 100644
--- a/flow/weex.js
+++ b/flow/weex.js
@@ -1,6 +1,79 @@
 // global flag to be compiled away
 declare var __WEEX__: boolean;
 
+declare type Weex = {
+  config: Object;
+  document: WeexDocument;
+  requireModule: (name: string) => Object | void;
+  supports: (condition: string) => boolean | void;
+  isRegisteredModule: (name: string, method?: string) => boolean;
+  isRegisteredComponent: (name: string) => boolean;
+};
+
+declare interface WeexDocument {
+  id: string | number;
+  URL: string;
+  taskCenter: Object;
+
+  open: () => void;
+  close: () => void;
+  createElement: (tagName: string, props?: Object) => WeexElement;
+  createComment: (text: string) => Object;
+  fireEvent: (type: string) => void;
+  destroy: () => void;
+};
+
+declare interface WeexElement {
+  nodeType: number;
+  nodeId: string | number;
+  type: string;
+  ref: string | number;
+  text?: string;
+
+  parentNode: WeexElement | void;
+  children: Array<WeexElement>;
+  previousSibling: WeexElement | void;
+  nextSibling: WeexElement | void;
+
+  appendChild: (node: WeexElement) => void;
+  removeChild: (node: WeexElement, preserved?: boolean) => void;
+  insertBefore: (node: WeexElement, before: WeexElement) => void;
+  insertAfter: (node: WeexElement, after: WeexElement) => void;
+  setAttr: (key: string, value: any, silent?: boolean) => void;
+  setAttrs: (attrs: Object, silent?: boolean) => void;
+  setStyle: (key: string, value: any, silent?: boolean) => void;
+  setStyles: (attrs: Object, silent?: boolean) => void;
+  addEvent: (type: string, handler: Function, args?: Array<any>) => void;
+  removeEvent: (type: string) => void;
+  fireEvent: (type: string) => void;
+  destroy: () => void;
+}
+
+declare type WeexInstanceOption = {
+  instanceId: string;
+  config: Object;
+  document: WeexDocument;
+  Vue?: GlobalAPI;
+  app?: Component;
+  data?: Object;
+};
+
+declare type WeexRuntimeContext = {
+  weex: Weex;
+  service: Object;
+  BroadcastChannel?: Function;
+};
+
+declare type WeexInstanceContext = {
+  Vue: GlobalAPI;
+
+  // DEPRECATED
+  setTimeout?: Function;
+  clearTimeout?: Function;
+  setInterval?: Function;
+  clearInterval?: Function;
+};
+
 declare type WeexCompilerOptions = CompilerOptions & {
   // whether to compile special template for <recycle-list>
   recyclable?: boolean;
diff --git a/src/platforms/weex/entry-framework.js b/src/platforms/weex/entry-framework.js
index 2c281970699..a23775d4db5 100644
--- a/src/platforms/weex/entry-framework.js
+++ b/src/platforms/weex/entry-framework.js
@@ -1,127 +1,89 @@
+/* @flow */
+
 // this will be preserved during build
+// $flow-disable-line
 const VueFactory = require('./factory')
 
-const instances = {}
-
-/**
- * Prepare framework config.
- * Nothing need to do actually, just an interface provided to weex runtime.
- */
-export function init () {}
-
-/**
- * Reset framework config and clear all registrations.
- */
-export function reset () {
-  clear(instances)
-}
+const instanceOptions: { [key: string]: WeexInstanceOption } = {}
 
 /**
- * Delete all keys of an object.
- * @param {object} obj
+ * Create instance context.
  */
-function clear (obj) {
-  for (const key in obj) {
-    delete obj[key]
+export function createInstanceContext (
+  instanceId: string,
+  runtimeContext: WeexRuntimeContext,
+  data: Object = {}
+): WeexInstanceContext {
+  const weex: Weex = runtimeContext.weex
+  const instance: WeexInstanceOption = instanceOptions[instanceId] = {
+    instanceId,
+    config: weex.config,
+    document: weex.document,
+    data
   }
-}
-
-/**
- * Create an instance with id, code, config and external data.
- * @param {string} instanceId
- * @param {string} appCode
- * @param {object} config
- * @param {object} data
- * @param {object} env { info, config, services }
- */
-export function createInstance (
-  instanceId,
-  appCode = '',
-  config = {},
-  data,
-  env = {}
-) {
-  const weex = env.weex
-  const document = weex.document
-  const instance = instances[instanceId] = {
-    instanceId, config, data,
-    document
-  }
-
-  const timerAPIs = getInstanceTimer(instanceId, weex.requireModule)
 
   // Each instance has a independent `Vue` module instance
   const Vue = instance.Vue = createVueModuleInstance(instanceId, weex)
 
-  // The function which create a closure the JS Bundle will run in.
-  // It will declare some instance variables like `Vue`, HTML5 Timer APIs etc.
-  const instanceVars = Object.assign({
-    Vue,
-    weex
-  }, timerAPIs, env.services)
-
-  appCode = `(function(global){ \n${appCode}\n })(Object.create(this))`
-  callFunction(instanceVars, appCode)
+  // DEPRECATED
+  const timerAPIs = getInstanceTimer(instanceId, weex.requireModule)
 
-  return instance
+  const instanceContext = Object.assign({ Vue }, timerAPIs)
+  Object.freeze(instanceContext)
+  return instanceContext
 }
 
 /**
  * Destroy an instance with id. It will make sure all memory of
  * this instance released and no more leaks.
- * @param {string} instanceId
  */
-export function destroyInstance (instanceId) {
-  const instance = instances[instanceId]
+export function destroyInstance (instanceId: string): void {
+  const instance = instanceOptions[instanceId]
   if (instance && instance.app instanceof instance.Vue) {
-    instance.document.destroy()
-    instance.app.$destroy()
+    try {
+      instance.app.$destroy()
+      instance.document.destroy()
+    } catch (e) {}
     delete instance.document
     delete instance.app
   }
-  delete instances[instanceId]
+  delete instanceOptions[instanceId]
 }
 
 /**
  * Refresh an instance with id and new top-level component data.
  * It will use `Vue.set` on all keys of the new data. So it's better
  * define all possible meaningful keys when instance created.
- * @param {string} instanceId
- * @param {object} data
  */
-export function refreshInstance (instanceId, data) {
-  const instance = instances[instanceId]
+export function refreshInstance (
+  instanceId: string,
+  data: Object
+): Error | void {
+  const instance = instanceOptions[instanceId]
   if (!instance || !(instance.app instanceof instance.Vue)) {
     return new Error(`refreshInstance: instance ${instanceId} not found!`)
   }
-  for (const key in data) {
-    instance.Vue.set(instance.app, key, data[key])
+  if (instance.Vue && instance.Vue.set) {
+    for (const key in data) {
+      instance.Vue.set(instance.app, key, data[key])
+    }
   }
   // Finally `refreshFinish` signal needed.
   instance.document.taskCenter.send('dom', { action: 'refreshFinish' }, [])
 }
 
-/**
- * Get the JSON object of the root element.
- * @param {string} instanceId
- */
-export function getRoot (instanceId) {
-  const instance = instances[instanceId]
-  if (!instance || !(instance.app instanceof instance.Vue)) {
-    return new Error(`getRoot: instance ${instanceId} not found!`)
-  }
-  return instance.app.$el.toJSON()
-}
-
 /**
  * Create a fresh instance of Vue for each Weex instance.
  */
-function createVueModuleInstance (instanceId, weex) {
+function createVueModuleInstance (
+  instanceId: string,
+  weex: Weex
+): GlobalAPI {
   const exports = {}
   VueFactory(exports, weex.document)
   const Vue = exports.Vue
 
-  const instance = instances[instanceId]
+  const instance = instanceOptions[instanceId]
 
   // patch reserved tag detection to account for dynamically registered
   // components
@@ -161,7 +123,7 @@ function createVueModuleInstance (instanceId, weex) {
     mounted () {
       const options = this.$options
       // root component (vm)
-      if (options.el && weex.document) {
+      if (options.el && weex.document && instance.app === this) {
         try {
           // Send "createFinish" signal to native.
           weex.document.taskCenter.send('dom', { action: 'createFinish' }, [])
@@ -185,16 +147,17 @@ function createVueModuleInstance (instanceId, weex) {
 }
 
 /**
+ * DEPRECATED
  * Generate HTML5 Timer APIs. An important point is that the callback
  * will be converted into callback id when sent to native. So the
  * framework can make sure no side effect of the callback happened after
  * an instance destroyed.
- * @param  {[type]} instanceId   [description]
- * @param  {[type]} moduleGetter [description]
- * @return {[type]}              [description]
  */
-function getInstanceTimer (instanceId, moduleGetter) {
-  const instance = instances[instanceId]
+function getInstanceTimer (
+  instanceId: string,
+  moduleGetter: Function
+): Object {
+  const instance = instanceOptions[instanceId]
   const timer = moduleGetter('timer')
   const timerAPIs = {
     setTimeout: (...args) => {
@@ -222,22 +185,3 @@ function getInstanceTimer (instanceId, moduleGetter) {
   }
   return timerAPIs
 }
-
-/**
- * Call a new function body with some global objects.
- * @param  {object} globalObjects
- * @param  {string} code
- * @return {any}
- */
-function callFunction (globalObjects, body) {
-  const globalKeys = []
-  const globalValues = []
-  for (const key in globalObjects) {
-    globalKeys.push(key)
-    globalValues.push(globalObjects[key])
-  }
-  globalKeys.push(body)
-
-  const result = new Function(...globalKeys)
-  return result(...globalValues)
-}
diff --git a/test/weex/helpers/index.js b/test/weex/helpers/index.js
index 6ed807cb867..fca2e1eafbc 100644
--- a/test/weex/helpers/index.js
+++ b/test/weex/helpers/index.js
@@ -124,7 +124,7 @@ function omitUseless (object) {
 }
 
 export function getRoot (instance) {
-  return omitUseless(instance.document.body.toJSON())
+  return omitUseless(instance.$getRoot())
 }
 
 // Get all binding events in the instance
@@ -141,7 +141,7 @@ export function getEvents (instance) {
       node.children.forEach(recordEvent)
     }
   }
-  recordEvent(instance.document.body.toJSON())
+  recordEvent(instance.$getRoot())
   return events
 }
 
@@ -158,9 +158,14 @@ export function createInstance (id, code, ...args) {
   context.registerModules({
     timer: ['setTimeout', 'setInterval']
   })
-  const instance = context.createInstance(id, `// { "framework": "Vue" }\n${code}`, ...args)
+  const instance = context.createInstance(id, `// { "framework": "Vue" }\n${code}`, ...args) || {}
+  instance.document = context.getDocument(id)
+  instance.$getRoot = () => context.getRoot(id)
   instance.$refresh = (data) => context.refreshInstance(id, data)
-  instance.$destroy = () => context.destroyInstance(id)
+  instance.$destroy = () => {
+    delete instance.document
+    context.destroyInstance(id)
+  }
   instance.$triggerHook = (id, hook, args) => {
     instance.document.taskCenter.triggerHook(id, 'lifecycle', hook, { args })
   }
diff --git a/test/weex/runtime/framework.spec.js b/test/weex/runtime/framework.spec.js
index 5a8daed4615..ac74680c41b 100644
--- a/test/weex/runtime/framework.spec.js
+++ b/test/weex/runtime/framework.spec.js
@@ -1,4 +1,3 @@
-import * as framework from '../../../packages/weex-vue-framework'
 import { getRoot, createInstance } from '../helpers/index'
 
 describe('framework APIs', () => {
@@ -26,17 +25,17 @@ describe('framework APIs', () => {
       new Vue({
         render: function (createElement) {
           return createElement('div', {}, [
-            createElement('text', { attrs: { value: JSON.stringify(this.$getConfig()) }}, [])
+            createElement('text', { attrs: { value: JSON.stringify(weex.config) }}, [])
           ])
         },
         el: "body"
       })
-    `, { bundleUrl: 'http://example.com/', a: 1, b: 2 })
+    `, { bundleType: 'Vue', bundleUrl: 'http://example.com/', a: 1, b: 2 })
     expect(getRoot(instance)).toEqual({
       type: 'div',
       children: [{
         type: 'text',
-        attr: { value: '{"bundleUrl":"http://example.com/","a":1,"b":2,"env":{},"bundleType":"Vue"}' }
+        attr: { value: '{"bundleType":"Vue","bundleUrl":"http://example.com/","a":1,"b":2,"env":{}}' }
       }]
     })
   })
@@ -122,63 +121,6 @@ describe('framework APIs', () => {
     })
   })
 
-  it('getRoot', () => {
-    const id = String(Date.now() * Math.random())
-    const instance = createInstance(id, `
-      new Vue({
-        data: {
-          x: 'Hello'
-        },
-        render: function (createElement) {
-          return createElement('div', {}, [
-            createElement('text', { attrs: { value: this.x }}, [])
-          ])
-        },
-        el: "body"
-      })
-    `)
-
-    let root = framework.getRoot(id)
-    expect(root.ref).toEqual('_root')
-    expect(root.type).toEqual('div')
-    expect(root.children.length).toEqual(1)
-    expect(root.children[0].type).toEqual('text')
-    expect(root.children[0].attr).toEqual({ value: 'Hello' })
-    framework.destroyInstance(instance.id)
-
-    root = framework.getRoot(instance.id)
-    expect(root instanceof Error).toBe(true)
-    expect(root).toMatch(/getRoot/)
-    expect(root).toMatch(/not found/)
-  })
-
-  it('vm.$getConfig', () => {
-    const id = String(Date.now() * Math.random())
-    global.WXEnvironment = {
-      weexVersion: '0.10.0',
-      platform: 'Node.js'
-    }
-    const instance = createInstance(id, `
-      new Vue({
-        render: function (createElement) {
-          return createElement('div', {}, [
-            createElement('text', { attrs: { value: JSON.stringify(this.$getConfig()) }}, [])
-          ])
-        },
-        el: "body"
-      })
-    `, { bundleUrl: 'http://whatever.com/x.js' })
-    expect(JSON.parse(getRoot(instance).children[0].attr.value)).toEqual({
-      bundleUrl: 'http://whatever.com/x.js',
-      bundleType: 'Vue',
-      env: {
-        weexVersion: '0.10.0',
-        platform: 'Node.js'
-      }
-    })
-    delete global.WXEnvironment
-  })
-
   it('registering global assets', () => {
     const id = String(Date.now() * Math.random())
     const instance = createInstance(id, `