diff --git a/services/abilitymgr/src/mission_list_manager.cpp b/services/abilitymgr/src/mission_list_manager.cpp
old mode 100755
new mode 100644
index 37629a61bb488df75e6fdfb980a0e02ec7514487..38bacfd396679e310dac14659400dbe654a32bc3
--- a/services/abilitymgr/src/mission_list_manager.cpp
+++ b/services/abilitymgr/src/mission_list_manager.cpp
@@ -984,6 +984,10 @@ int MissionListManager::ClearMission(int missionId)
     }
     std::lock_guard<std::recursive_mutex> guard(managerLock_);
     auto mission = GetMissionById(missionId);
+    if (mission->GetMissionList() && mission->GetMissionList()->GetType() == MissionListType::LAUNCHER) {
+        HILOG_ERROR("Mission id is launcher, can not clear.");
+        return ERR_INVALID_VALUE;
+    }
     return ClearMissionLocked(missionId, mission);
 }