diff --git a/app/Http/Controllers/Admin/ImController.php b/app/Http/Controllers/Admin/ImController.php
index edca82c..63a5e48 100644
--- a/app/Http/Controllers/Admin/ImController.php
+++ b/app/Http/Controllers/Admin/ImController.php
@@ -97,6 +97,9 @@ class ImController extends Controller
                 $data['upcustommode'] = $request->upcustommode;
             }
             if ($request->teamMemberLimit) {
+                if ($request->teamMemberLimit > 200) {
+                    return $this->failure("人数不能超过200人");
+                }
                 $data['teamMemberLimit'] = $request->teamMemberLimit;
             }
             $result = $im_service->postDataCurl($url, $data);