diff --git a/index.js b/index.js
index e0959e3..e17855d 100644
--- a/index.js
+++ b/index.js
@@ -12,7 +12,8 @@ hexo.extend.console.register('server', 'Start the server.', {
     {name: '-i, --ip', desc: 'Override the default server IP. Bind to all IP address by default.'},
     {name: '-p, --port', desc: 'Override the default port.'},
     {name: '-s, --static', desc: 'Only serve static files.'},
-    {name: '-l, --log [format]', desc: 'Enable logger. Override the logger format.'}
+    {name: '-l, --log [format]', desc: 'Enable logger. Override the logger format.'},
+    {name: '-o, --open', desc: 'Immediately open the server url in your default web browser.'}
   ]
 }, require('./lib/server'));
 
@@ -21,4 +22,4 @@ hexo.extend.filter.register('server_middleware', require('./lib/middlewares/head
 hexo.extend.filter.register('server_middleware', require('./lib/middlewares/route'));
 hexo.extend.filter.register('server_middleware', require('./lib/middlewares/static'));
 hexo.extend.filter.register('server_middleware', require('./lib/middlewares/redirect'));
-hexo.extend.filter.register('server_middleware', require('./lib/middlewares/gzip'));
\ No newline at end of file
+hexo.extend.filter.register('server_middleware', require('./lib/middlewares/gzip'));
diff --git a/lib/server.js b/lib/server.js
index c70e63e..5793b63 100644
--- a/lib/server.js
+++ b/lib/server.js
@@ -2,6 +2,8 @@ var connect = require('connect');
 var http = require('http');
 var chalk = require('chalk');
 var Promise = require('bluebird');
+var format = require('util').format;
+var open = require('open');
 
 function server(args){
   var app = connect();
@@ -24,9 +26,14 @@ function server(args){
   }).then(function(){
     return startServer(http.createServer(app), port, ip);
   }).then(function(server){
-    self.log.info('Hexo is running at ' + chalk.underline('http://%s:%d%s') + '. Press Ctrl+C to stop.', ip, port, root);
+    var addr = format('http://%s:%d%s', ip, port, root);
+    self.log.info('Hexo is running at %s. Press Ctrl+C to stop.', chalk.underline(addr));
     self.emit('server');
 
+    if (args.o || args.open) {
+      open(addr);
+    }
+
     return server;
   }, function(err){
     switch (err.code){
@@ -53,4 +60,4 @@ function startServer(server, port, ip){
   });
 }
 
-module.exports = server;
\ No newline at end of file
+module.exports = server;
diff --git a/package.json b/package.json
index b14d49b..4211f2c 100644
--- a/package.json
+++ b/package.json
@@ -28,6 +28,7 @@
     "connect": "3.x",
     "mime": "^1.2.11",
     "morgan": "^1.5.0",
+    "open": "0.0.5",
     "serve-static": "^1.7.1",
     "utils-merge": "^1.0.0"
   },