diff --git a/app/Http/Admin/Services/Role.php b/app/Http/Admin/Services/Role.php
index 82fde39a..86bade39 100644
--- a/app/Http/Admin/Services/Role.php
+++ b/app/Http/Admin/Services/Role.php
@@ -61,8 +61,11 @@ class Role extends Service
 
         $data['name'] = $validator->checkName($post['name']);
         $data['summary'] = $validator->checkSummary($post['summary']);
-        $data['routes'] = $validator->checkRoutes($post['routes']);
-        $data['routes'] = $this->handleRoutes($data['routes']);
+
+        if (isset($post['routes'])) {
+            $data['routes'] = $validator->checkRoutes($post['routes']);
+            $data['routes'] = $this->handleRoutes($data['routes']);
+        }
 
         $role->update($data);
 
@@ -114,9 +117,9 @@ class Role extends Service
      * @param array $routes
      * @return array
      */
-    protected function handleRoutes($routes)
+    protected function handleRoutes(array $routes)
     {
-        if (empty($routes)) {
+        if (count($routes) == 0) {
             return [];
         }
 
diff --git a/app/Models/Role.php b/app/Models/Role.php
index 827a368a..a30b573b 100644
--- a/app/Models/Role.php
+++ b/app/Models/Role.php
@@ -105,6 +105,8 @@ class Role extends Model
     {
         if (is_array($this->routes) && !empty($this->routes)) {
             $this->routes = kg_json_encode($this->routes);
+        } else {
+            $this->routes = '';
         }
 
         $this->create_time = time();