Method for determining underground excavation position

The invention provides a method for determining an underground excavation position. The method comprises acquiring a seismic oscillation caused by underground excavation by using a spherically arranged seismic oscillation detector array; listing an equation set according to a distance formula to solve a plane coordinate value by using the time, acquired by five seismic oscillation detectors on the plane, of the seismic oscillation signal caused by excavation and the coordinates of respective seismic oscillation detectors; and determining the depth coordinate value range of a excavation point by using a seismic oscillation signal intensity relation caused by excavation and acquired by three seismic oscillation detector on a vertical plane. The method can not only determine the plane coordinates of the excavation position, but also can determine the depth range of the underground excavation, and is beneficial to effective monitoring of an underground excavation monitoring system based on micro-vibration.