diff --git a/lib/dev.js b/lib/dev.js
index d10702b..b8a7ca8 100644
--- a/lib/dev.js
+++ b/lib/dev.js
@@ -53,8 +53,9 @@ export default async function createServer(root = '', conf = {}) {
 
   server
     .on('request', function (req, res) {
+      let prefix = DEPLOY_PATH ? DEPLOY_PATH.replace(/\/$/, '') : ''
       let url =
-        DEPLOY_PATH && req.url.startsWith(DEPLOY_PATH.replace(/\/$/, ''))
+        prefix && req.url.startsWith(prefix)
           ? req.url.slice(DEPLOY_PATH.length)
           : req.url.slice(1)
       let pathname = parse(url).pathname
@@ -62,6 +63,12 @@ export default async function createServer(root = '', conf = {}) {
         isIndex = false // 是否渲染目录页
       let ext
 
+      if (prefix && req.url === '/') {
+        res.setHeader('Location', DEPLOY_PATH)
+        res.writeHead(302, 'Redirect')
+        return res.end('')
+      }
+
       if (pathname) {
         pathname = pathname.split('/')