diff --git a/atom/browser/native_window.cc b/atom/browser/native_window.cc
index a4366649b3..95dc491ed4 100644
--- a/atom/browser/native_window.cc
+++ b/atom/browser/native_window.cc
@@ -101,6 +101,13 @@ NativeWindow::NativeWindow(content::WebContents* web_contents,
   // Read icon before window is created.
   options.Get(switches::kIcon, &icon_);
 
+  // The "preload" option must be absolute path.
+  if (options.Get(switches::kPreloadScript, &preload_script_) &&
+      !preload_script_.IsAbsolute()) {
+    LOG(ERROR) << "Path of \"preload\" script must be absolute.";
+    preload_script_.clear();
+  }
+
   // Be compatible with old API of "node-integration" option.
   std::string old_string_token;
   if (options.Get(switches::kNodeIntegration, &old_string_token) &&
@@ -349,6 +356,10 @@ void NativeWindow::AppendExtraCommandLineSwitches(
   command_line->AppendSwitchASCII(switches::kNodeIntegration,
                                   node_integration_ ? "true" : "false");
 
+  // Append --preload.
+  if (!preload_script_.empty())
+    command_line->AppendSwitchPath(switches::kPreloadScript, preload_script_);
+
   // Append --zoom-factor.
   if (zoom_factor_ != 1.0)
     command_line->AppendSwitchASCII(switches::kZoomFactor,
diff --git a/atom/browser/native_window.h b/atom/browser/native_window.h
index 7a21083ab3..a57a1a9dbe 100644
--- a/atom/browser/native_window.h
+++ b/atom/browser/native_window.h
@@ -318,6 +318,9 @@ class NativeWindow : public brightray::DefaultWebContentsDelegate,
   // Web preferences.
   mate::PersistentDictionary web_preferences_;
 
+  // The script to load before page's JavaScript starts to run.
+  base::FilePath preload_script_;
+
   // Page's default zoom factor.
   double zoom_factor_;
 
diff --git a/atom/common/options_switches.cc b/atom/common/options_switches.cc
index e6e65f204b..4bbc5e6075 100644
--- a/atom/common/options_switches.cc
+++ b/atom/common/options_switches.cc
@@ -67,7 +67,7 @@ const char kEnablePlugins[] = "enable-plugins";
 const char kGuestInstanceID[] = "guest-instance-id";
 
 // Script that will be loaded by guest WebContents before other scripts.
-const char kPreloadScript[] = "preload-script";
+const char kPreloadScript[] = "preload";
 
 // Web runtime features.
 const char kExperimentalFeatures[]       = "experimental-features";
diff --git a/atom/renderer/lib/init.coffee b/atom/renderer/lib/init.coffee
index 5203ec8530..69e76e98e1 100644
--- a/atom/renderer/lib/init.coffee
+++ b/atom/renderer/lib/init.coffee
@@ -31,7 +31,7 @@ for arg in process.argv
     require('web-frame').setName 'ATOM_SHELL_GUEST_WEB_VIEW'
   else if arg.indexOf('--node-integration=') == 0
     nodeIntegration = arg.substr arg.indexOf('=') + 1
-  else if arg.indexOf('--preload-script=') == 0
+  else if arg.indexOf('--preload=') == 0
     preloadScript = arg.substr arg.indexOf('=') + 1
 
 if location.protocol is 'chrome-devtools:'
diff --git a/docs/api/browser-window.md b/docs/api/browser-window.md
index 0a77909810..222df14dab 100644
--- a/docs/api/browser-window.md
+++ b/docs/api/browser-window.md
@@ -61,7 +61,11 @@ You can also create a window without chrome by using
   * `enable-larger-than-screen` Boolean - Enable the window to be resized larger
     than screen.
   * `dark-theme` Boolean - Forces using dark theme for the window, only works on
-    some GTK+3 desktop environments.
+    some GTK+3 desktop environments
+  * `preload` String - Specifies a script that will be loaded before other
+    scripts run in the window. This script will always have access to node APIs
+    no matter whether node integration is turned on for the window, and the path
+    of `preload` script has to be absolute path.
   * `web-preferences` Object - Settings of web page's features
     * `javascript` Boolean
     * `web-security` Boolean
diff --git a/spec/api-browser-window-spec.coffee b/spec/api-browser-window-spec.coffee
index 79dbaa435e..c81e1731d5 100644
--- a/spec/api-browser-window-spec.coffee
+++ b/spec/api-browser-window-spec.coffee
@@ -136,6 +136,16 @@ describe 'browser-window module', ->
       assert.equal after[0], size.width
       assert.equal after[1], size.height
 
+  describe '"preload" options', ->
+    it 'loads the script before other scripts in window', (done) ->
+      preload = path.join fixtures, 'module', 'set-global.js'
+      remote.require('ipc').once 'preload', (event, test) ->
+        assert.equal(test, 'preload')
+        done()
+      w.destroy()
+      w = new BrowserWindow(show: false, width: 400, height: 400, preload: preload)
+      w.loadUrl 'file://' + path.join(fixtures, 'api', 'preload.html')
+
   describe 'beforeunload handler', ->
     it 'returning true would not prevent close', (done) ->
       w.on 'closed', ->
diff --git a/spec/fixtures/api/preload.html b/spec/fixtures/api/preload.html
new file mode 100644
index 0000000000..22dee23444
--- /dev/null
+++ b/spec/fixtures/api/preload.html
@@ -0,0 +1,9 @@
+<html>
+<body>
+<script type="text/javascript" charset="utf-8">
+if (!window.test)
+  window.test = 'window'
+require('ipc').send('preload', window.test);
+</script>
+</body>
+</html>
diff --git a/spec/fixtures/module/set-global.js b/spec/fixtures/module/set-global.js
new file mode 100644
index 0000000000..f39919ff9d
--- /dev/null
+++ b/spec/fixtures/module/set-global.js
@@ -0,0 +1 @@
+window.test = 'preload';