Abstract: Coal and rock movement of 530 mining area of Xinhe coal mine was monitored by microseismic system，then the relationship between geological structure，broken height of roof，advance speed of working face，blasting and microseismic movement were studied，the results showed that most of microseismic incidents appeared in fault，axial position of fold and microseismic movement was influenced more by geological structure，the broken height of roof reached 90m in ‘jianfang’ position，and it reached about 110m in fold axial position，when advance speed of working face exceeded 4m/d，obviously positive correlation property appeared between microseismic and advance speed，microseismic movement was different after blasting，microseismic monitoring was an effectively method for unloading by blasting.