Unmanned aerial vehicle searching instrument, unmanned aerial vehicle searching method and electric power inspection unmanned aerial vehicle

The invention discloses an unmanned aerial vehicle searching instrument, an unmanned aerial vehicle searching method and an electric power inspection unmanned aerial vehicle. The unmanned aerial vehicle searching instrument comprises a signal receiving device and a signal transmitting device; the signal receiving device is fixed on the unmanned aerial vehicle, comprises a positioning module and an acousto-optic self-rescue module, and is used for acquiring a positioning signal of the unmanned aerial vehicle in real time through the positioning module and sending the positioning signal to the mobile terminal; the acousto-optic self-rescue module is used for sending an acousto-optic signal; the signal transmitting device comprises an acousto-optic control module, the acousto-optic control module is used for controlling the acousto-optic self-rescue module, and the signal transmitting device is used for controlling the acousto-optic self-rescue module to send out an acousto-optic signal through the acousto-optic