diff --git a/packages/webpack-uni-pages-loader/lib/platforms/mp-alipay.js b/packages/webpack-uni-pages-loader/lib/platforms/mp-alipay.js
index e3eaa5fa15d43b7b5e1bcc78eca1868d7e472ef6..4d98fffc75b19d9a1f57680d15383e49de989abb 100644
--- a/packages/webpack-uni-pages-loader/lib/platforms/mp-alipay.js
+++ b/packages/webpack-uni-pages-loader/lib/platforms/mp-alipay.js
@@ -12,6 +12,10 @@ const {
   parseTabBar
 } = require('../util')
 
+function defaultCopy (name, value, json) {
+  json[name] = value
+}
+
 const pagesJson2AppJson = {
   globalStyle: function (name, value, json) {
     json.window = parseStyle(value)
@@ -22,7 +26,8 @@ const pagesJson2AppJson = {
   },
   tabBar: function (name, value, json) {
     json.tabBar = parseTabBar(value)
-  }
+  },
+  preloadRule: defaultCopy
 }
 
 function copyToJson (json, fromJson, options) {
@@ -62,19 +67,19 @@ module.exports = function (pagesJson, manifestJson) {
     app.subPackages.push(subPackages[root])
   })
 
-  copyToJson(app, pagesJson, pagesJson2AppJson)
-
-  const platformJson = manifestJson['mp-alipay'] || {}
-  if (hasOwn(platformJson, 'plugins')) {
-    app.plugins = platformJson.plugins
-  }
+  copyToJson(app, pagesJson, pagesJson2AppJson)
+
+  const platformJson = manifestJson['mp-alipay'] || {}
+  if (hasOwn(platformJson, 'plugins')) {
+    app.plugins = platformJson.plugins
+  }
 
   if (app.usingComponents) {
     updateAppJsonUsingComponents(app.usingComponents)
   }
 
   const project = Object.assign({}, manifestJson['mp-alipay'] || {})
-  delete project.usingComponents
+  delete project.usingComponents
   delete project.plugins
 
   return [{
@@ -84,4 +89,4 @@ module.exports = function (pagesJson, manifestJson) {
     name: 'mini.project',
     content: project
   }]
-}
+}