diff --git a/code/application/source/sf_app/code/source/systemMng/sf_commu_mcu.c b/code/application/source/sf_app/code/source/systemMng/sf_commu_mcu.c
index cf97de0a1..b9eca674a 100755
--- a/code/application/source/sf_app/code/source/systemMng/sf_commu_mcu.c
+++ b/code/application/source/sf_app/code/source/systemMng/sf_commu_mcu.c
@@ -969,7 +969,7 @@ unsigned char sf_commu_parse_mcu_data(unsigned char * src, unsigned int len)
                         printf("[power off] %s(%d)\n", __FUNCTION__, __LINE__);
                         sf_set_power_off_flag(1);
                         //sf_app_battery_stop();
-                        system("reboot");
+                        system("watchdog -T 1 -t 5 /dev/watchdog");
                     }
                     else
                     {
diff --git a/code/lib/source/sifar/code/source/mcu/sf_mcu_client.c b/code/lib/source/sifar/code/source/mcu/sf_mcu_client.c
index 028855846..a52636774 100644
--- a/code/lib/source/sifar/code/source/mcu/sf_mcu_client.c
+++ b/code/lib/source/sifar/code/source/mcu/sf_mcu_client.c
@@ -806,7 +806,7 @@ void sf_mcu_dataready_ck(UINT8 startMode)
 			printf("[power off] %s(%d)\n", __FUNCTION__, __LINE__);
             if((startMode == 1) && (PWR_ON_AUTO == sf_cardv_convert_power_on_mode()))
             {
-                system("reboot");
+                system("watchdog -T 1 -t 5 /dev/watchdog");
             }
             else
             {