Abstract:In our country, open-pit mine gradually entered the deep depression mining stage, the number of high and steep slopes is increasing, landslide accident has become a major hidden danger and safety hazard in surface mining production, a serious threat to mine safety production. As an effective slope monitoring and early warning method covering the whole mine, microseismic monitoring technology has been widely recognized by the industry. In this paper, a wireless microseismic monitoring scheme has been formed through rock microfracture sensing, weak signal extraction, wireless transmission, processing and analysis and other technologies, and the construction of a wireless microseismic monitoring system has been completed in an open-pit mine.Automatic waveform time picking is realized by short and short time window combined with AIC method, and automatic source location is realized by network automatic source selection method. After blasting verification, the source location error in network is 8.15%, and the source location error at network edge is 8.28%, which meets the requirement of source location accuracy of an open-pit mine danger source. The mine safety production is guaranteed effectively in real time.