Abstract: In order to timely detect and deal with the safety risks of ventilation network, the article has designed a ventilation network stability control and disaster emergency control system. Through collecting methane, carbon monoxide, carbon dioxide, dust, wind speed, wind fan operating conditions, frequency converter output frequency and other parameters, the system analyzed and determined whether the network had abnormal air volume, once it had any abnormity, the system could adjust by the change of fan frequency and the branch roadway windage. It achieves intelligent monitoring and control of the ventilation network.