diff --git a/services/dtbschedmgr/src/mission/dms_continue_send_manager.cpp b/services/dtbschedmgr/src/mission/dms_continue_send_manager.cpp
index ecbb5f32..6c826002 100644
--- a/services/dtbschedmgr/src/mission/dms_continue_send_manager.cpp
+++ b/services/dtbschedmgr/src/mission/dms_continue_send_manager.cpp
@@ -39,7 +39,7 @@ constexpr int32_t INDEX_2 = 2;
 constexpr int32_t INDEX_3 = 3;
 constexpr int32_t CANCEL_FOCUSED_DELAYED = 60000;
 constexpr int32_t SCREEN_OFF_DELAY_TIME = 10000;
-constexpr int64_t TIME_DELAYED = 250; // determines whether normal unfocused or lockoff
+constexpr int64_t TIME_DELAYED = 500; // determines whether normal unfocused or lockoff
 const std::string TAG = "DMSContinueSendMgr";
 const std::string TIMEOUT_UNFOCUSED_TASK = "timeout_unfocused_task";
 const std::string SCREEN_OFF_UNFOCUSED_TASK = "screen_off_unfocused_task";