Abstract: In view of problem of false data existed in coal mine monitoring and control system, the paper summed up main causes of false data of coal mine monitoring and control system through field investigation, testing and analyzing, pointed out surge interference of power cable in roadway is the most main cause. It put forward main technical measures to remove the false data, concrete measures of anti-interference measures for power cable surge, and proposed method of using substation software to filter false data by identifying change rate of data.