Unmanned aerial vehicle countering method and device

The invention discloses an unmanned aerial vehicle countering method. The method comprises the steps that multiple sound signals of a target unmanned aerial vehicle are acquired, the multiple sound signals are acquired by multiple microphones, and the number of the microphones in the transverse direction, the number of the microphones in the longitudinal direction and the number of the microphones in the vertical direction are respectively at least two; the distance between the two microphones in the transverse direction and the arrival time difference of sound signals, the distance between the two microphones in the longitudinal direction and the arrival time difference of the sound signals, the distance between the two microphones in the vertical direction, the arrival time difference of the sound signals and the propagation speed of the sound signals are utilized to calculate the position information of the target unmanned aerial vehicle; and an interference wave interfering with a GPS signal and a remote