diff --git a/webapp/services/MissionService.php b/webapp/services/MissionService.php
index 7f8a088a..fda1312e 100644
--- a/webapp/services/MissionService.php
+++ b/webapp/services/MissionService.php
@@ -682,6 +682,14 @@ class MissionService extends BaseService {
             break;
             }
         }
+        if ($heroCount > $missionMeta['param3']) {
+            myself()->_rspErr(1, 'hero number error');
+            return;
+        }
+        if ($gunCount > $missionMeta['param4']) {
+            myself()->_rspErr(1, 'gun number error');
+            return;
+        }
         $mission['sendtime'] = myself()->_getNowTime();
         error_log(json_encode($mission));
         $this->offerRewartdMission['missions'][$idx] = $mission;