The utility model discloses an unmanned aerial vehicle charging device based on magnetic coupling wireless power transmission technique, including wireless charge the module with install the energy receiving module in unmanned aerial vehicle, the wireless module of charging is including the rectification filter circuit who connects gradually, high frequency inverter circuit, transmitting coil andthe repeating coil who is located the dead in line that obtains transmitting coil plane and axis and transmitting coil, energy receiving module is including the receiving coil who connects gradually,rectification voltage stabilizing circuit and supply control circuit, the supply control circuit is connected with rechargeable battery, repeating coil is measure -alike with receiving coil's, wireless charge module and energy receiving module pass through the electromagnetic resonance transmission energy that produces between repeating coil and the receiving coil. The utility model discloses neednot artifical manual charging, can making unmanned aerial vehicle, automatic under the not enough condition of rechargeable battery navigate back and automatic identification looks for the wireless module of charging, the accurate descending is charged, has greatly improved unmanned aerial vehicle's availability factor and application.