Abstract: The methane wind power lockout function is critical to two roadway driving in high gas coal mine, the importance and difficulty was analyzed, and the layout of various kinds of sensors and controllers was discussed. There were three schemes of methane wind power lockout realized by the monitoring system in coal mine. Through the comparison, the optimum scheme was obtained. Taking KJ90NB monitoring system as the example, the design methods were studied for central station software, sub-station, breaker and other aspects, then the considerations and problems were put forward in some coal mine sites.