diff --git a/lib/dev_command.js b/lib/dev_command.js
index f7fb7df8..53865b27 100644
--- a/lib/dev_command.js
+++ b/lib/dev_command.js
@@ -5,23 +5,27 @@ const Command = require('./command');
 
 class DevCommand extends Command {
   * run(cwd, args) {
+    const execArgv = args ? args.filter(str => str.indexOf('--debug') === 0 || str.indexOf('--inspect') === 0) : [];
+
     args.push('--baseDir');
     args.push(cwd);
     args.push('--cluster');
     args.push('1');
 
     const eggPath = this.getFrameworkOrEggPath(cwd);
+
     if (eggPath) {
       args.push(`--eggPath=${eggPath}`);
     }
 
     const options = {
       env: process.env,
+      execArgv,
     };
 
     options.env.NODE_ENV = options.env.NODE_ENV || 'development';
 
-    debug('%s %j %j', this.helper.serverBin, args, options.env.NODE_ENV);
+    debug('%s %j %j, %j', this.helper.serverBin, args, execArgv, options.env.NODE_ENV);
     yield this.helper.checkDeps();
     yield this.helper.forkNode(this.helper.serverBin, args, options);
   }
diff --git a/lib/start-cluster b/lib/start-cluster
index 1536677e..90e57ca9 100755
--- a/lib/start-cluster
+++ b/lib/start-cluster
@@ -9,6 +9,7 @@ commander
   .option('--baseDir [baseDir]')
   .option('--port [port]')
   .option('--cluster [workers]')
+  .allowUnknownOption(true)
   .parse(process.argv);
 
 const baseDir = commander.baseDir;
diff --git a/package.json b/package.json
index f607aae7..7fa51f32 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
     "common-bin": "^1.0.0",
     "debug": "^2.2.0",
     "egg-utils": "^1.0.0",
-    "glob": "^7.0.5",
+    "glob": "^7.1.0",
     "istanbul": "^0.4.0",
     "mkdirp": "^0.5.1",
     "mocha": "^3.0.0",
@@ -20,8 +20,8 @@
     "thunk-mocha": "^1.0.3"
   },
   "devDependencies": {
-    "autod": "^2.7.0",
-    "coffee": "^3.2.4",
+    "autod": "^2.7.1",
+    "coffee": "^3.2.5",
     "egg-ci": "1",
     "eslint": "3",
     "eslint-config-egg": "3",
diff --git a/test/egg-dev.test.js b/test/egg-dev.test.js
index 8ec03cfb..e1f51556 100644
--- a/test/egg-dev.test.js
+++ b/test/egg-dev.test.js
@@ -26,4 +26,26 @@ describe('egg-bin dev', () => {
     .expect('code', 0)
     .end(done);
   });
+
+  it('should startCluster with execArgv --debug', done => {
+    coffee.fork(eggBin, [ 'dev', '--debug=7000' ], {
+      cwd: appdir,
+    })
+    // .debug()
+    .expect('stdout', `{"baseDir":"${appdir}","workers":1}\n`)
+    .expect('stderr', /Debugger listening on .*7000/)
+    .expect('code', 0)
+    .end(done);
+  });
+
+  it.skip('should startCluster with execArgv --inspect', done => {
+    coffee.fork(eggBin, [ 'dev', '--inspect=7000' ], {
+      cwd: appdir,
+    })
+    // .debug()
+    .expect('stdout', `{"baseDir":"${appdir}","workers":1}\n`)
+    .expect('stderr', /Debugger listening on .*7000/)
+    .expect('code', 0)
+    .end(done);
+  });
 });