diff --git a/app/Controller/api/expose/v1/ToolsController.php b/app/Controller/api/expose/v1/ToolsController.php
index 57e3051..d635370 100644
--- a/app/Controller/api/expose/v1/ToolsController.php
+++ b/app/Controller/api/expose/v1/ToolsController.php
@@ -58,7 +58,7 @@ class ToolsController extends AbstractController
         try {
             $requestData = $this->request->post();
 var_dump($requestData);
-            if (!isset($requestData['length']) || !isset($requestData['keyword_id']) || !$requestData['keyword_id'] || !$requestData['image_name'] || !$requestData['ip_info']) {
+            if (!isset($requestData['length']) || $requestData['length'] < 2 || !isset($requestData['keyword_id']) || !$requestData['keyword_id'] || !$requestData['image_name'] || !$requestData['ip_info']) {
                 return $this->response->json([
                     'code' => 400,
                     'msg' => '缺少参数'