The mining safety is seriously effected by the ground disasters such as roof caving,banding,collapse,and rock burst induced by high stress in deep well. With the development of high-precision,high-sampling rate sensors and computer technology,real-time microseismic monitoring with high-precision was achieved and became an important means of ground pressure disaster monitoring and early warning. The BSN(BGRIMM seismic network)microseismic monitoring system with completely independent intellectual property rights was developed by BGRIMM Technology Group. The BSN system has realized microseismic signal acquisition,multi-channel time synchronization,denoising,automatic onset time picking,and source location. By employing the seismic activity analysis methods,the BSN system could provide preliminary results of the risk assessment of the rock mass. In this paper we introduce the BSN microseismic monitoring products and show the details of the whole process including data collection,processing,positioning,and risk analysis. An actual application case of the monitoring system in a mine in Guangxi is further demonstrated.