An unmanned aerial vehicle aerial charge device includes an unmanned aerial vehicle, a telegraph pole, a power supply box, a control unit, a charge module and a communication antenna A; the power supply box, the control unit, the charge module and the communication antenna A are fixed on an upper end of the telegraph pole; the control unit is connected to the power supply box, the charge module, and the communication antenna A; and the unmanned aerial vehicle has a communication antenna B communicating with the communication antenna A, and a device for determining the dump power and a distancebetween the unmanned aerial vehicle and the charging device.