diff --git a/app/admin/controller/v1/UserCenter.php b/app/admin/controller/v1/UserCenter.php
index 5a804929..325c3063 100644
--- a/app/admin/controller/v1/UserCenter.php
+++ b/app/admin/controller/v1/UserCenter.php
@@ -37,16 +37,18 @@ class UserCenter
                 throw new InvalidLoginException($validate->getError());
             }
 
-            // 校验验证码
-            $code = Cache::get('captcha:token.' . $post['token']);
-            if (!$code) {
-                throw new InvalidLoginException('验证码不存在或已过期');
-            }
-            Cache::delete('captcha:token.' . $post['token']);
+            if (!empty($post['captcha'])) {
+                // 校验验证码
+                $code = Cache::get('captcha:token.' . $post['token']);
+                if (!$code) {
+                    throw new InvalidLoginException('验证码不存在或已过期');
+                }
+                Cache::delete('captcha:token.' . $post['token']);
 
-            // 校验
-            if (!password_verify($post['captcha'], $code)) {
-                throw new InvalidLoginException('验证码错误');
+                // 校验
+                if (!password_verify($post['captcha'], $code)) {
+                    throw new InvalidLoginException('验证码错误');
+                }
             }
             
             // 验证用户
diff --git a/app/admin/validate/v1/LoginValidate.php b/app/admin/validate/v1/LoginValidate.php
index 4bf1dd15..847ce654 100644
--- a/app/admin/validate/v1/LoginValidate.php
+++ b/app/admin/validate/v1/LoginValidate.php
@@ -16,8 +16,8 @@ class LoginValidate extends Validate
     protected $rule = [
         'username' => 'require',
         'password' => 'require',
-        'token'    => 'require',
-        'captcha'  => 'require'
+        'captcha'  => 'max:6',
+        'token'    => 'requireWith:captcha'
     ];
 
     /**
@@ -27,9 +27,9 @@ class LoginValidate extends Validate
      * @var array
      */
     protected $message = [
-        'username.require' => '用户名不能为空',
-        'password.require' => '密码不能为空',
-        'token.require'    => '验证码token不能为空',
-        'captcha.require'  => '验证码不能为空'
+        'username.require'  => '用户名不能为空',
+        'password.require'  => '密码不能为空',
+        'captcha.captcha'   => '验证码不能为空',
+        'token.requireWith' => '验证码token不能为空'
     ];
 }