diff --git a/packages/uni-cli-shared/lib/theme.js b/packages/uni-cli-shared/lib/theme.js
index 809c5555f6bee63a11bdc1243439dd797fc63bc5..2f478396634253722fa2b3a8bf329101dbd9ea11 100644
--- a/packages/uni-cli-shared/lib/theme.js
+++ b/packages/uni-cli-shared/lib/theme.js
@@ -15,9 +15,8 @@ function parseThemeByJsonStr (jsonStr, keys, theme) {
   return jsonStr
 }
 
-const themeJsonPath = path.join(process.env.UNI_INPUT_DIR, 'theme.json')
-
-function hasTheme () {
+function hasTheme (themeLocation = '') {
+  const themeJsonPath = path.join(process.env.UNI_INPUT_DIR, themeLocation || 'theme.json')
   return fs.existsSync(themeJsonPath)
 }
 
@@ -25,19 +24,24 @@ function darkmode () {
   return !!(global.uniPlugin.options || {}).darkmode
 }
 
+let themeConfig = {}
+
 module.exports = {
+  getTheme: () => themeConfig,
   darkmode,
   hasTheme,
-  initTheme () {
-    if (!hasTheme()) {
+  initTheme (manifestJson = {}) {
+    const platform = process.env.UNI_PLATFORM
+    const themeLocation = (manifestJson[platform] || {}).themeLocation
+    if (!hasTheme(themeLocation)) {
       return
     }
     if (darkmode()) {
       return
     }
     try {
-      const theme = getJson('theme.json', true)
-      global.uniPlugin.defaultTheme = theme.light
+      themeConfig = getJson(themeLocation || 'theme.json', true)
+      global.uniPlugin.defaultTheme = themeConfig.light
     } catch (e) {
       console.error(e)
     }
@@ -56,4 +60,4 @@ module.exports = {
     }
     return JSON.parse(parseThemeByJsonStr(JSON.stringify(json), keys, theme))
   }
-}
+}
diff --git a/packages/webpack-uni-pages-loader/lib/index-new.js b/packages/webpack-uni-pages-loader/lib/index-new.js
index 752f4b20668b47cee8fc78c63383042caa9461d2..58172d2fc23b43e67adb555f464ed58c15a4696b 100644
--- a/packages/webpack-uni-pages-loader/lib/index-new.js
+++ b/packages/webpack-uni-pages-loader/lib/index-new.js
@@ -51,8 +51,6 @@ function renameUsingComponents (jsonObj) {
 module.exports = function (content, map) {
   this.cacheable && this.cacheable()
 
-  initTheme()
-
   let isAppView = false
   if (this.resourceQuery) {
     const params = loaderUtils.parseQuery(this.resourceQuery)
@@ -68,6 +66,8 @@ module.exports = function (content, map) {
     fs.readFileSync(manifestJsonPath, 'utf8')
   )
 
+  initTheme(manifestJson)
+
   // this.addDependency(pagesJsonJsPath)
   const localePath = path.resolve(process.env.UNI_INPUT_DIR, 'locale')
   // 路径不存在时会触发 webpack5 差量编译
@@ -76,7 +76,7 @@ module.exports = function (content, map) {
   }
   this.addDependency(manifestJsonPath)
 
-  let pagesJson = parsePagesJson(content, {
+  const originalPagesJson = parsePagesJson(content, {
     addDependency: file => {
       (process.UNI_PAGES_DEPS || (process.UNI_PAGES_DEPS = new Set())).add(
         normalizePath(file)
@@ -85,7 +85,7 @@ module.exports = function (content, map) {
     }
   })
 
-  if (!pagesJson.pages || pagesJson.pages.length === 0) {
+  if (!originalPagesJson.pages || originalPagesJson.pages.length === 0) {
     console.error(uniI18n.__('pagesLoader.pagesNodeCannotNull'))
     process.exit(0)
   }
@@ -94,13 +94,13 @@ module.exports = function (content, map) {
     const queryParam = loaderUtils.parseQuery(this.resourceQuery)
     if (queryParam) {
       if (queryParam.type === 'origin-pages-json') {
-        return `export default ${JSON.stringify(pagesJson)}`
+        return `export default ${JSON.stringify(originalPagesJson)}`
       }
     }
   }
 
+  const pagesJson = parseTheme(originalPagesJson)
   if (global.uniPlugin.defaultTheme) {
-    pagesJson = parseTheme(pagesJson)
     this.addDependency(path.resolve(process.env.UNI_INPUT_DIR, 'theme.json'))
   }
 
@@ -167,7 +167,7 @@ module.exports = function (content, map) {
   }
 
   const jsonFiles = require('./platforms/' + process.env.UNI_PLATFORM)(
-    pagesJson,
+    process.env.UNI_PLATFORM === 'app-plus' ? originalPagesJson : pagesJson,
     manifestJson,
     isAppView
   )
diff --git a/packages/webpack-uni-pages-loader/lib/platforms/app-plus/index.js b/packages/webpack-uni-pages-loader/lib/platforms/app-plus/index.js
index 5ff180dee6fcf1b7de8defbc929bd02beda67f3b..3a0735a096ac759ad8c31891bf46e071c6862583 100644
--- a/packages/webpack-uni-pages-loader/lib/platforms/app-plus/index.js
+++ b/packages/webpack-uni-pages-loader/lib/platforms/app-plus/index.js
@@ -7,6 +7,11 @@ const {
   normalizePath,
   getFlexDirection
 } = require('@dcloudio/uni-cli-shared')
+const {
+  getTheme,
+  hasTheme,
+  parseTheme
+} = require('@dcloudio/uni-cli-shared/lib/theme')
 const {
   compileI18nJsonStr
 } = require('@dcloudio/uni-i18n')
@@ -104,6 +109,16 @@ function updateFileFlag (appJson) {
   }
 }
 
+function _initTheme (appJson, userManifestJson) {
+  const manifestJson = userManifestJson[process.env.UNI_PLATFORM] || {}
+  appJson.darkmode = manifestJson.darkmode || false
+  const themeLocation = manifestJson.themeLocation || ''
+  if (themeLocation && hasTheme(themeLocation)) {
+    appJson.themeConfig = getTheme()
+  }
+  return appJson
+}
+
 module.exports = function (pagesJson, userManifestJson, isAppView) {
   const {
     app
@@ -115,10 +130,12 @@ module.exports = function (pagesJson, userManifestJson, isAppView) {
 
   const appJson = app.content
 
+  _initTheme(appJson, userManifestJson)
+
   const {
     navigationBarTextStyle = 'white',
     navigationBarBackgroundColor = '#000000'
-  } = appJson.window || {}
+  } = parseTheme(appJson.window) || {}
 
   const TABBAR_HEIGHT = 50
 
@@ -279,7 +296,7 @@ module.exports = function (pagesJson, userManifestJson, isAppView) {
     // 安全区配置 仅包含 tabBar 的时候才配置
     if (!manifestJson.plus.safearea) {
       manifestJson.plus.safearea = {
-        background: appJson.tabBar.backgroundColor || '#FFFFFF',
+        background: parseTheme(appJson.tabBar).backgroundColor || '#FFFFFF',
         bottom: {
           offset: 'auto'
         }
@@ -470,7 +487,7 @@ module.exports = function (pagesJson, userManifestJson, isAppView) {
         if (args && (args.path || args.pathName)) {
           entryPagePath = conditionPagePath = args.path || args.pathName
         }
-      } catch (e) {}
+      } catch (e) { }
     }
 
     let isNVueEntryPage = appJson.nvue && appJson.nvue.entryPagePath
@@ -521,7 +538,7 @@ module.exports = function (pagesJson, userManifestJson, isAppView) {
       pagesJson.tabBar.list.length
     ) {
       const tabBar = (manifestJson.plus.tabBar = Object.assign({},
-        pagesJson.tabBar
+        parseTheme(pagesJson.tabBar)
       ))
       const borderStyles = {
         black: 'rgba(0,0,0,0.4)',
@@ -546,9 +563,9 @@ module.exports = function (pagesJson, userManifestJson, isAppView) {
         const item = tabBar.list.find(
           page =>
             page.pagePath ===
-          (process.env.UNI_USING_NATIVE
-            ? appJson.entryPagePath
-            : entryPagePath)
+            (process.env.UNI_USING_NATIVE
+              ? appJson.entryPagePath
+              : entryPagePath)
         )
         if (item) {
           tabBar.child = ['lauchwebview']
@@ -634,7 +651,7 @@ function initUniStatistics (manifestJson) {
   let spaces = []
   try {
     spaces = JSON.parse(process.env.UNI_CLOUD_PROVIDER)
-  } catch (e) {}
+  } catch (e) { }
   if (!Array.isArray(spaces) || !spaces.length) {
     return
   }
diff --git a/packages/webpack-uni-pages-loader/lib/util.js b/packages/webpack-uni-pages-loader/lib/util.js
index 44a33ad6e2180a8d2f595e28185e9982fd62c245..2d75721907f83c2f7ca91fa56b3f7d914ac5cda6 100644
--- a/packages/webpack-uni-pages-loader/lib/util.js
+++ b/packages/webpack-uni-pages-loader/lib/util.js
@@ -18,7 +18,13 @@ const alipayWindowMap = {
   navigationBarShadow: 'navigationBarShadow',
   titleImage: 'titleImage',
   transparentTitle: 'transparentTitle',
-  titlePenetrate: 'titlePenetrate'
+  titlePenetrate: 'titlePenetrate',
+  barButtonTheme: {
+    key: 'navigationBarTextStyle',
+    transform: function (value) {
+
+    }
+  }
 }
 
 const alipayTabBarMap = {
diff --git a/src/platforms/app-plus/service/api/device/system.js b/src/platforms/app-plus/service/api/device/system.js
index f9241a59819f8ff9cce8322df3deb1399949a4e8..73b7ac59cefdaf0122e06f7d23272c9c0aa39da6 100644
--- a/src/platforms/app-plus/service/api/device/system.js
+++ b/src/platforms/app-plus/service/api/device/system.js
@@ -5,15 +5,16 @@ import { sortObject } from 'uni-shared'
 let systemInfo = {}
 let _initSystemInfo = true
 
-function weexGetSystemInfoSync () {
+export function weexGetSystemInfoSync () {
   if (!_initSystemInfo) return
   const { getSystemInfoSync } = weex.requireModule('plus')
   systemInfo = getSystemInfoSync()
   if (typeof systemInfo === 'string') {
     try {
       systemInfo = JSON.parse(systemInfo)
-    } catch (error) {}
+    } catch (error) { }
   }
+  return systemInfo
 }
 
 export function getDeviceInfo () {
@@ -47,7 +48,7 @@ export function getAppBaseInfo () {
     hostPackageName, hostName, osLanguage,
     hostVersion, hostLanguage, hostTheme,
     appId, appName, appVersion, appVersionCode,
-    appWgtVersion
+    appWgtVersion, osTheme
   } = systemInfo
 
   const appLanguage = uni
@@ -73,7 +74,7 @@ export function getAppBaseInfo () {
     hostFontSizeSetting: undefined,
     language: osLanguage,
     SDKVersion: '',
-    theme: undefined,
+    theme: hostTheme || osTheme,
     version: plus.runtime.innerVersion
   }
 }
@@ -112,7 +113,9 @@ export function getSystemInfo () {
 
   delete _systemInfo.screenTop
   delete _systemInfo.enableDebug
-  delete _systemInfo.theme
+  if (!__uniConfig.darkmode) {
+    delete _systemInfo.theme
+  }
 
   return sortObject(_systemInfo)
 }
diff --git a/src/platforms/app-plus/service/framework/tab-bar.js b/src/platforms/app-plus/service/framework/tab-bar.js
index 3bf232ea247ae0b9b0a8eb7d4a84b6f4c7fa632a..77cdb6c3f18ede178a7db2a749bb40ebfa374086 100644
--- a/src/platforms/app-plus/service/framework/tab-bar.js
+++ b/src/platforms/app-plus/service/framework/tab-bar.js
@@ -7,6 +7,8 @@ import {
   requireNativePlugin
 } from '../bridge'
 
+import { useTabBarThemeChange } from './theme'
+
 const TABBAR_HEIGHT = 50
 let config
 
@@ -17,6 +19,10 @@ let visible = true
 
 let tabBar
 
+function setTabBarItems (style) {
+  tabBar && tabBar.setTabBarItems(style)
+}
+
 /**
  * 设置角标
  * @param {string} type
@@ -60,9 +66,9 @@ function setTabBarItem (index, text, iconPath, selectedIconPath, visible, iconfo
   }
   if (selectedIconPath) {
     item.selectedIconPath = getRealPath(selectedIconPath)
-  }
-  if (iconfont !== undefined) {
-    item.iconfont = iconfont
+  }
+  if (iconfont !== undefined) {
+    item.iconfont = iconfont
   }
   if (visible !== undefined) {
     item.visible = config.list[index].visible = visible
@@ -71,7 +77,7 @@ function setTabBarItem (index, text, iconPath, selectedIconPath, visible, iconfo
     const tabbarItems = config.list.map(item => ({ visible: item.visible }))
     tabbarItems[index] = item
 
-    tabBar && tabBar.setTabBarItems({ list: tabbarItems })
+    setTabBarItems({ list: tabbarItems })
   } else {
     tabBar && tabBar.setTabBarItem(item)
   }
@@ -128,6 +134,8 @@ export default {
     tabBar && tabBar.onMidButtonClick(() => {
       publish('onTabBarMidButtonTap', {})
     })
+
+    useTabBarThemeChange(tabBar, options)
   },
   indexOf (page) {
     const config = this.config
diff --git a/src/platforms/app-plus/service/framework/theme.js b/src/platforms/app-plus/service/framework/theme.js
new file mode 100644
index 0000000000000000000000000000000000000000..aeb62b1ce8d94bd58d000e85917c8f00676bcba8
--- /dev/null
+++ b/src/platforms/app-plus/service/framework/theme.js
@@ -0,0 +1,80 @@
+import { normallizeStyles } from 'uni-shared'
+import { weexGetSystemInfoSync } from '../api/device/system'
+
+const ON_THEME_CHANGE = 'api.onThemeChange'
+
+function onThemeChange (callback = () => { }) {
+  UniServiceJSBridge.on(ON_THEME_CHANGE, callback)
+}
+
+function offThemeChange (callback = () => { }) {
+  UniServiceJSBridge.off(ON_THEME_CHANGE, callback)
+}
+
+export function parseTheme (pageStyle) {
+  let parsedStyle = {}
+  if (__uniConfig.darkmode) {
+    let theme = 'light'
+    const systemInfo = weexGetSystemInfoSync()
+    if (systemInfo) {
+      theme = systemInfo.hostTheme || systemInfo.osTheme
+    }
+    parsedStyle = normallizeStyles(pageStyle, __uniConfig.themeConfig, theme)
+  }
+  return __uniConfig.darkmode ? parsedStyle : pageStyle
+}
+
+export function useTabBarThemeChange (tabBar, options) {
+  if (__uniConfig.darkmode) {
+    const fn = () => {
+      const {
+        list = [], color, selectedColor,
+        backgroundColor, borderStyle
+      } = parseTheme(options, false)
+      const tabbarStyle = {
+        color,
+        selectedColor,
+        backgroundColor,
+        borderStyle
+      }
+
+      tabBar && tabBar.setTabBarStyle(tabbarStyle)
+      tabBar && tabBar.setTabBarItems({
+        list: list.map((item) => ({
+          iconPath: item.iconPath,
+          selectedIconPath: item.selectedIconPath
+        }))
+      })
+      // TODO 暂未实现
+      // tabBar && tabBar.setAnimationAlphaBGColor(parseTheme((__uniConfig.window || {}).backgroundColor, false))
+    }
+
+    fn()
+
+    onThemeChange(fn)
+  }
+}
+
+export function useWebviewThemeChange (webview, getWebviewStyle) {
+  if (__uniConfig.darkmode) {
+    const fn = () => {
+      const {
+        animationAlphaBGColor, background,
+        backgroundColorBottom, backgroundColorTop,
+        titleNView: { backgroundColor, titleColor } = {}
+      } = getWebviewStyle()
+      webview && webview.setStyle({
+        animationAlphaBGColor,
+        background,
+        backgroundColorBottom,
+        backgroundColorTop,
+        titleNView: {
+          backgroundColor,
+          titleColor
+        }
+      })
+    }
+    onThemeChange(fn)
+    webview.addEventListener('close', () => offThemeChange(fn))
+  }
+}
diff --git a/src/platforms/app-plus/service/framework/webview/index.js b/src/platforms/app-plus/service/framework/webview/index.js
index ddfdadbe200cc94c1f9f0b627f225cbe4961ca55..59d45e3b1bc0829f6d9cd98b1edecf6b1c560982 100644
--- a/src/platforms/app-plus/service/framework/webview/index.js
+++ b/src/platforms/app-plus/service/framework/webview/index.js
@@ -30,6 +30,8 @@ import {
   onWebviewPopGesture
 } from './on-webview-pop-gesture'
 
+import { useWebviewThemeChange } from '../theme'
+
 export let preloadWebview
 
 let id = 2
@@ -71,21 +73,26 @@ function getDebugRefresh (path, query, routeOptions) {
 
 export function createWebview (path, routeOptions, query, extras = {}) {
   if (routeOptions.meta.isNVue) {
-    const webviewId = id++
-    const webviewStyle = parseWebviewStyle(
+    const getWebviewStyle = () => parseWebviewStyle(
       webviewId,
       path,
       routeOptions
     )
+    const webviewId = id++
+    const webviewStyle = getWebviewStyle()
     webviewStyle.uniPageUrl = getUniPageUrl(path, query)
     if (process.env.NODE_ENV !== 'production') {
       console.log('[uni-app] createWebview', webviewId, path, webviewStyle)
     }
     // android 需要使用
     webviewStyle.isTab = !!routeOptions.meta.isTabBar
-    return plus.webview.create('', String(webviewId), webviewStyle, Object.assign({
+    const webview = plus.webview.create('', String(webviewId), webviewStyle, Object.assign({
       nvue: true
     }, extras))
+
+    useWebviewThemeChange(webview, getWebviewStyle)
+
+    return webview
   }
   if (id === 2) { // 如果首页非 nvue，则直接返回 Launch Webview
     return plus.webview.getLaunchWebview()
@@ -97,11 +104,12 @@ export function createWebview (path, routeOptions, query, extras = {}) {
 export function initWebview (webview, routeOptions, path, query) {
   // 首页或非 nvue 页面
   if (webview.id === '1' || !routeOptions.meta.isNVue) {
-    const webviewStyle = parseWebviewStyle(
+    const getWebviewStyle = () => parseWebviewStyle(
       parseInt(webview.id),
       '',
       routeOptions
     )
+    const webviewStyle = getWebviewStyle()
 
     webviewStyle.uniPageUrl = getUniPageUrl(path, query)
 
@@ -115,6 +123,8 @@ export function initWebview (webview, routeOptions, path, query) {
       console.log('[uni-app] updateWebview', webviewStyle)
     }
 
+    useWebviewThemeChange(webview, getWebviewStyle)
+
     webview.setStyle(webviewStyle)
   }
 
diff --git a/src/platforms/app-plus/service/framework/webview/parser/webview-style-parser.js b/src/platforms/app-plus/service/framework/webview/parser/webview-style-parser.js
index 905193556ec95469c60bdecd85629dc42d0bc899..34d86c536f63ca986909b27a2730e2ccc1eb8ae4 100644
--- a/src/platforms/app-plus/service/framework/webview/parser/webview-style-parser.js
+++ b/src/platforms/app-plus/service/framework/webview/parser/webview-style-parser.js
@@ -4,6 +4,8 @@ import { parsePullToRefresh } from './pull-to-refresh-parser'
 
 import { parseStyleUnit } from './style-unit-parser'
 
+import { parseTheme } from '../../theme'
+
 const WEBVIEW_STYLE_BLACKLIST = [
   'navigationBarBackgroundColor',
   'navigationBarTextStyle',
@@ -21,25 +23,27 @@ const WEBVIEW_STYLE_BLACKLIST = [
   'pullToRefresh'
 ]
 
-export function parseWebviewStyle (id, path, routeOptions = {}) {
+export function parseWebviewStyle (id, path, _routeOptions = {}) {
   const webviewStyle = {
     bounce: 'vertical'
   }
 
   // 合并
-  routeOptions.window = parseStyleUnit(
+  _routeOptions.window = parseStyleUnit(
     Object.assign(
       JSON.parse(JSON.stringify(__uniConfig.window || {})),
-      routeOptions.window || {}
+      _routeOptions.window || {}
     )
   )
 
-  Object.keys(routeOptions.window).forEach(name => {
+  Object.keys(_routeOptions.window).forEach(name => {
     if (WEBVIEW_STYLE_BLACKLIST.indexOf(name) === -1) {
-      webviewStyle[name] = routeOptions.window[name]
+      webviewStyle[name] = _routeOptions.window[name]
     }
   })
 
+  const routeOptions = parseTheme(_routeOptions)
+
   const backgroundColor = routeOptions.window.backgroundColor
   if (
     /^#[a-z0-9]{6}$/i.test(backgroundColor) ||
@@ -51,6 +55,15 @@ export function parseWebviewStyle (id, path, routeOptions = {}) {
     if (!webviewStyle.backgroundColorTop) {
       webviewStyle.backgroundColorTop = backgroundColor
     }
+    if (!webviewStyle.backgroundColorBottom) {
+      webviewStyle.backgroundColorBottom = backgroundColor
+    }
+    if (!webviewStyle.animationAlphaBGColor) {
+      webviewStyle.animationAlphaBGColor = backgroundColor
+    }
+    if (typeof webviewStyle.webviewBGTransparent === 'undefined') {
+      webviewStyle.webviewBGTransparent = true
+    }
   }
 
   const titleNView = parseTitleNView(id, routeOptions)
diff --git a/src/shared/index.js b/src/shared/index.js
index c5062af2abcbdc63ade2280432b974b41164e1d4..30131c808b1d68e3bbd407f54fa92134e0c55b91 100644
--- a/src/shared/index.js
+++ b/src/shared/index.js
@@ -4,3 +4,4 @@ export * from './color'
 export * from './query'
 export * from './platform'
 export * from './callback'
+export * from './theme'
diff --git a/src/shared/theme.js b/src/shared/theme.js
new file mode 100644
index 0000000000000000000000000000000000000000..a99a5621651b12e76e139e28181fef3d890a5322
--- /dev/null
+++ b/src/shared/theme.js
@@ -0,0 +1,44 @@
+import { isPlainObject, isStr } from './util'
+
+const borderStyles = {
+  black: 'rgba(0,0,0,0.4)',
+  white: 'rgba(255,255,255,0.4)'
+}
+
+export function normalizeTabBarStyles (borderStyle) {
+  if (borderStyle && borderStyle in borderStyles) {
+    return borderStyles[borderStyle]
+  }
+  return borderStyle
+}
+
+export function normallizeStyles (pageStyle, themeConfig, mode = 'light') {
+  const modeStyle = themeConfig[mode]
+  const styles = {}
+  if (!modeStyle) {
+    return styles
+  }
+  Object.keys(pageStyle).forEach((key) => {
+    const styleItem = pageStyle[key] // Object Array String
+    styles[key] = (() => {
+      if (isPlainObject(styleItem)) {
+        return normallizeStyles(styleItem, themeConfig, mode)
+      } else if (Array.isArray(styleItem)) {
+        return styleItem.map((item) => isPlainObject(item)
+          ? normallizeStyles(item, themeConfig, mode)
+          : item)
+      } else if (isStr(styleItem) && styleItem.startsWith('@')) {
+        const _key = styleItem.replace('@', '')
+        let _styleItem = modeStyle[_key]
+        switch (key) {
+          case 'borderStyle':
+            _styleItem = normalizeTabBarStyles(_styleItem)
+            break
+        }
+        return _styleItem
+      }
+      return styleItem
+    })()
+  })
+  return styles
+}