The invention provides an unmanned aerial vehicle high-altitude non-contact type energy supply system and method. The method includes the steps that an aerial charging aircraft carrier receives a charging request sent by an unmanned aerial vehicle; position information of the unmanned aerial vehicle is obtained, and the relative position of the aerial charging aircraft carrier and the unmanned aerial vehicle is adjusted according to the position information; and electric energy is converted into electromagnetic energy which is wirelessly sent to the unmanned aerial vehicle. The problem existing in unmanned aerial vehicle energy supply on special occasions that no ground fixed charging station is available and the unmanned aerial vehicle is not allowed to land is solved, in the mode that the electric unmanned aerial vehicle and the aerial charging aircraft carrier are combined, the unmanned aerial vehicle can obtain electric energy from the aerial charging aircraft carrier, and therefore the cruising ability of the unmanned aerial vehicle is improved.