Abstract: Once the coal mine main ventilator stops running, it is extremely easy to cause secondary accident when the ventilation is restored. Based on the examples of emergency disposal on stop running and recovering mine ventilator and recovering power supply in high gas mine which located at the same level with main intake airflow roadway and return airway roadway, the paper proposes the key links and measures of emergency disposal, which plays a good role in ensuring the safety of mine ventilation system and power supply system and preventing secondary accidents.