diff --git a/script/build-main.ts b/script/build-main.ts
index cbca964..20dd593 100644
--- a/script/build-main.ts
+++ b/script/build-main.ts
@@ -1,22 +1,28 @@
 /**
- * electron 打包
+ * Electron main process package script
  */
 import { join } from 'path'
 import { spawn, ChildProcess } from 'child_process'
-import { watch, rollup, OutputOptions } from 'rollup'
+import { watch, rollup, RollupOptions, OutputOptions } from 'rollup'
+import nodeResolve from '@rollup/plugin-node-resolve'
+import commonjs from '@rollup/plugin-commonjs'
+import typescript from '@rollup/plugin-typescript'
+import alias from '@rollup/plugin-alias'
+import json from '@rollup/plugin-json'
+import { builtins } from './utils'
 import minimist from 'minimist'
 import chalk from 'chalk'
 import ora from 'ora'
 import electron from 'electron'
 import dotenv from 'dotenv'
 import { waitOn } from './utils'
-import options from './rollup.config'
 import { main } from '../package.json'
 
+// Inject some environment variables from ".env"
 dotenv.config({ path: join(__dirname, '../.env') })
 
 const argv = minimist(process.argv.slice(2))
-const opts = options(argv.env)
+const opts = configFactory(argv.env)
 const TAG = '[build-main.ts]'
 const spinner = ora(`${TAG} Electron build...`)
 
@@ -56,3 +62,35 @@ if (argv.watch) {
       console.log(`\n${TAG} ${chalk.red('构建报错')}\n`, error, '\n')
     })
 }
+
+function configFactory(env = 'production') {
+  const options: RollupOptions = {
+    input: join(__dirname, '../src/main/index.ts'),
+    output: {
+      file: join(__dirname, '../dist/main/index.js'),
+      format: 'cjs',
+      name: 'ElectronMainBundle',
+      sourcemap: true,
+    },
+    plugins: [
+      nodeResolve(),
+      commonjs(),
+      json(),
+      typescript(),
+      alias({
+        entries: [
+          { find: '@render', replacement: join(__dirname, '../src/render') },
+          { find: '@main', replacement: join(__dirname, '../src/main') },
+          { find: '@src', replacement: join(__dirname, '../src') },
+          { find: '@root', replacement: join(__dirname, '..') },
+        ]
+      }),
+    ],
+    external: [
+      ...builtins(),
+      'electron',
+    ],
+  }
+
+  return options
+}
diff --git a/script/build-preload.ts b/script/build-preload.ts
new file mode 100644
index 0000000..710d429
--- /dev/null
+++ b/script/build-preload.ts
@@ -0,0 +1,46 @@
+/**
+ * Electron main preload package script
+ */
+import { join } from 'path'
+import { watch, rollup, RollupOptions, OutputOptions } from 'rollup'
+import { builtins } from './utils'
+import minimist from 'minimist'
+import chalk from 'chalk'
+
+const argv = minimist(process.argv.slice(2))
+const opts = configFactory(argv.env)
+const TAG = '[build-preload.ts]'
+
+if (argv.watch) {
+  const watcher = watch(opts)
+  watcher.on('change', filename => {
+    const log = chalk.yellow(`change -- ${filename}`)
+    console.log(TAG, log)
+  })
+} else {
+  rollup(opts)
+    .then(build => {
+      console.log(TAG, chalk.yellow('"preload/index.js" built.'))
+      build.write(opts.output as OutputOptions)
+    })
+    .catch(error => {
+      console.log(`\n${TAG} ${chalk.red('构建报错')}\n`, error, '\n')
+    })
+}
+
+function configFactory(env = 'production') {
+  const options: RollupOptions = {
+    input: join(__dirname, '../src/preload/index.js'),
+    output: {
+      file: join(__dirname, '../dist/preload/index.js'),
+      format: 'iife',
+    },
+    plugins: [],
+    external: [
+      ...builtins(),
+      'electron',
+    ],
+  }
+
+  return options
+}
diff --git a/script/rollup.config.ts b/script/rollup.config.ts
deleted file mode 100644
index 293b141..0000000
--- a/script/rollup.config.ts
+++ /dev/null
@@ -1,40 +0,0 @@
-import { join } from 'path'
-import { RollupOptions } from 'rollup'
-import nodeResolve from '@rollup/plugin-node-resolve'
-import commonjs from '@rollup/plugin-commonjs'
-import typescript from '@rollup/plugin-typescript'
-import alias from '@rollup/plugin-alias'
-import json from '@rollup/plugin-json'
-import { builtins } from './utils'
-
-export default (env = 'production') => {
-  const options: RollupOptions = {
-    input: join(__dirname, '../src/main/index.ts'),
-    output: {
-      file: join(__dirname, '../dist/main/index.js'),
-      format: 'cjs',
-      name: 'ElectronMainBundle',
-      sourcemap: true,
-    },
-    plugins: [
-      nodeResolve(),
-      commonjs(),
-      json(),
-      typescript(),
-      alias({
-        entries: [
-          { find: '@render', replacement: join(__dirname, '../src/render') },
-          { find: '@main', replacement: join(__dirname, '../src/main') },
-          { find: '@src', replacement: join(__dirname, '../src') },
-          { find: '@root', replacement: join(__dirname, '..') },
-        ]
-      }),
-    ],
-    external: [
-      ...builtins(),
-      'electron',
-    ],
-  }
-
-  return options
-}