diff --git a/board/TencentOS_tiny_EVB_G0/KEIL/mqtt_iot_explorer_tc_pm25/demo/mqtt_iot_explorer_tc_pm25_oled.c b/board/TencentOS_tiny_EVB_G0/KEIL/mqtt_iot_explorer_tc_pm25/demo/mqtt_iot_explorer_tc_pm25_oled.c
index 3933d1c8..bfa9b349 100644
--- a/board/TencentOS_tiny_EVB_G0/KEIL/mqtt_iot_explorer_tc_pm25/demo/mqtt_iot_explorer_tc_pm25_oled.c
+++ b/board/TencentOS_tiny_EVB_G0/KEIL/mqtt_iot_explorer_tc_pm25/demo/mqtt_iot_explorer_tc_pm25_oled.c
@@ -195,7 +195,11 @@ void mqtt_demo_task(void)
             sprintf(str, "# report ok");
             OLED_ShowString(0,2,(uint8_t*)str,16);
         }
-        
+
+        if (report_error_count >= 6) {
+            HAL_NVIC_SystemReset();
+        }
+             
         tos_sleep_ms(5000);
         
     }