Abstract: By using SOS micro seismic monitoring system, it monitored movement and fracture status of the roof and igneous rock in the mining process of the working face. It used software to analyze the position and energy of the seismic source, sent out warning information in time. At the same time, it took some measures of coal seam pressure relief and roof management, such as large-diameter borehole pressure relief, coal seam water injection, two roadways increase advanced management, collapse prevention and so on, which provided safety guarantee for mining in NO.10416 working face.