During open-pit bench blasting,the movement trajectory of rock in the bench area is an important factor affecting the accurate mining of open-pit mines,especially for unevenly mineralized ore bodies.In order to solve the difficult problem that the internal movement trajectory of rock during bench blasting in the Wushan Cu-Mo mine is not clear,a tracking algorithm with signal markers was used on bench blasting tests at the Wushan Cu-Mo mine in Manzhouli.Through on-site installation,positioning,monitoring and data analysis of intelligent beacons,the research results showed that: the first row of beacons had a long motion time and fast movement with an average speed of 5.89.8 m/s.The movement distance was between 18.4 m and 29.4 m.Due to constraints and obstruction of the rock mass in the front section of the bench,the motion time,movement speed and distance of the #2 monitoring beacon were significantly reduced,with an average speed of 1.8~4.8 m/s and a movement distance of 5.3~14.2 m.The movement distance and time of the #3 blast hole beacon was the smallest,and the inclination angle of the #3-3 beacon reached about 25°.The inclination angles of #6-1,#6-2 and #6-3 beacons were relatively gentle at about 2°~8°.From the depth perspective,the shallow beacons move forward horizontally during the forward rush period,and there was a significant downward trend in the latter half.The vertical motion distance of the deep beacons was significantly smaller than that of the shallow beacons.