RGM is the solution of mine gas security monitoring and discharge and it is based on internet control technology and consisted of 5 different equipments. It collects gas signals with transducer and controls local fans to discharge the gas of working surface in branch tunnel, high voltage converter controls main fan to regulate fresh air. These data and instruction are sent to processing center (central control system) and handle with gas monitoring system and fuzzy control technology to achieve the purpose of mine safety centralizes control.