diff --git a/src/Sms.php b/src/Sms.php
index 88d52bb..e4d685f 100644
--- a/src/Sms.php
+++ b/src/Sms.php
@@ -80,20 +80,22 @@ public function setStorage(StorageInterface $storage)
      */
     public function send($to)
     {
-        $this->setKey($to);
+        try {
 
-        //1. get code from storage.
-        $code = $this->getCodeFromStorage();
+            $this->setKey($to);
 
-        if ($this->needNewCode($code)) {
-            $code = $this->getNewCode($to);
-        }
+            //1. get code from storage.
+            $code = $this->getCodeFromStorage();
 
-        $validMinutes = (int)config('ibrand.sms.code.validMinutes', 5);
+            if ($this->needNewCode($code)) {
+                $code = $this->getNewCode($to);
+            }
+
+            $validMinutes = (int)config('ibrand.sms.code.validMinutes', 5);
+
+            $message = new CodeMessage($code->code, $validMinutes);
 
-        $message = new CodeMessage($code->code, $validMinutes);
 
-        try {
             $results = $this->easySms->send($to, $message);
 
             foreach ($results as $key => $value) {
@@ -105,13 +107,27 @@ public function send($to)
                     return true;
                 }
             }
-        } catch (NoGatewayAvailableException $e) {
+
+        } catch (NoGatewayAvailableException $noGatewayAvailableException) {
+            return false;
+        } catch (\Exception $exception) {
             return false;
         }
 
         return false;
     }
 
+
+    /**
+     * check china mobile.
+     * @param $to
+     * @return false|int
+     */
+    public function verifyMobile($to)
+    {
+        return preg_match('/^(?=\d{11}$)^1(?:3\d|4[57]|5[^4\D]|66|7[^249\D]|8\d|9[89])\d{8}$/', $to);
+    }
+
     /**
      * @param $to
      *
diff --git a/src/SmsController.php b/src/SmsController.php
index c30a019..74bd2e9 100644
--- a/src/SmsController.php
+++ b/src/SmsController.php
@@ -27,6 +27,9 @@ public function postSendCode()
     {
         $mobile = request('mobile');
 
+        if(!config('app.debug') && !Sms::verifyMobile($mobile)){
+            return response()->json(['success' => false, 'message' => '无效手机号码']);
+        }
 
         if (!Sms::canSend($mobile)) {
             return response()->json(['success' => false, 'message' => '每60秒发送一次']);
diff --git a/tests/SessionSmsTest.php b/tests/SessionSmsTest.php
index 56e8657..9b91940 100644
--- a/tests/SessionSmsTest.php
+++ b/tests/SessionSmsTest.php
@@ -1,14 +1,16 @@
 <?php
-/**
- * Created by PhpStorm.
- * User: Administrator
- * Date: 2018/2/2
- * Time: 14:04
+
+/*
+ * This file is part of ibrand/laravel-sms.
+ *
+ * (c) iBrand <https://www.ibrand.cc>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
  */
 
 namespace iBrand\Sms\Test;
 
-
 use iBrand\Sms\Storage\SessionStorage;
 
 class SessionSmsTest extends \Orchestra\Testbench\TestCase
@@ -42,4 +44,4 @@ protected function getEnvironmentSetUp($app)
         $app['config']->set('ibrand.sms', require __DIR__.'/../config/config.php');
         $app['config']->set('ibrand.sms.storage', SessionStorage::class);
     }
-}
\ No newline at end of file
+}
diff --git a/tests/SmsControllerTest.php b/tests/SmsControllerTest.php
index ff12ef3..0597ba0 100644
--- a/tests/SmsControllerTest.php
+++ b/tests/SmsControllerTest.php
@@ -1,14 +1,16 @@
 <?php
-/**
- * Created by PhpStorm.
- * User: Administrator
- * Date: 2018/2/2
- * Time: 14:29
+
+/*
+ * This file is part of ibrand/laravel-sms.
+ *
+ * (c) iBrand <https://www.ibrand.cc>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
  */
 
 namespace iBrand\Sms\Test;
 
-
 class SmsControllerTest extends \Orchestra\Testbench\TestCase
 {
     /**
@@ -36,27 +38,32 @@ protected function getPackageAliases($app)
     public function testPostSendCode()
     {
         //1. test success mobile.
-        $response = $this->post('sms/verify-code',['mobile'=>'18988885555']);
+        $response = $this->post('sms/verify-code', ['mobile' => '18973305743']);
 
         $response
             ->assertStatus(200)
             ->assertJson(['success' => true, 'message' => '短信发送成功']);
 
         //2. test repeat in 60 seconds.
-
-        $response = $this->post('sms/verify-code',['mobile'=>'18988885555']);
+        $response = $this->post('sms/verify-code', ['mobile' => '18973305743']);
 
         $response
             ->assertStatus(200)
             ->assertJson(['success' => false, 'message' => '每60秒发送一次']);
+
+        //3. test invalid mobile.
+        $response = $this->post('sms/verify-code', ['mobile' => '10000000000']);
+
+        $response
+            ->assertStatus(200)
+            ->assertJson(['success' => false, 'message' => '无效手机号码']);
     }
 
     public function testInfo()
     {
-        $response= $this->get('sms/info?mobile=18988885555');
+        $response = $this->get('sms/info?mobile=18988885555');
 
         $response
             ->assertStatus(200);
     }
-
-}
\ No newline at end of file
+}
diff --git a/tests/SmsTestTrait.php b/tests/SmsTestTrait.php
index 48db4d9..c097c51 100644
--- a/tests/SmsTestTrait.php
+++ b/tests/SmsTestTrait.php
@@ -1,5 +1,14 @@
 <?php
 
+/*
+ * This file is part of ibrand/laravel-sms.
+ *
+ * (c) iBrand <https://www.ibrand.cc>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace iBrand\Sms\Test;
 
 use iBrand\Sms\Storage\CacheStorage;
@@ -7,14 +16,13 @@
 
 trait SmsTestTrait
 {
-
     public function testStorage()
     {
         Sms::setStorage(new CacheStorage());
 
         $storage = Sms::getStorage();
 
-        $this->assertEquals(CacheStorage::class, get_class($storage));
+        $this->assertSame(CacheStorage::class, get_class($storage));
     }
 
     /**
@@ -24,7 +32,7 @@ public function testKey()
     {
         $key = md5('ibrand.sms.18988888888');
         Sms::setKey('18988888888');
-        $this->assertEquals($key, Sms::getKey());
+        $this->assertSame($key, Sms::getKey());
     }
 
     /**
@@ -32,7 +40,6 @@ public function testKey()
      */
     public function testSend()
     {
-
         //1. test send.
         $result = Sms::send('18988888888');
         $this->assertTrue($result);
@@ -77,4 +84,4 @@ public function testCheckCode()
 
         $this->assertFalse($result);
     }
-}
\ No newline at end of file
+}