Unmanned aerial vehicle battery replacement system and battery replacement method

The invention relates to the technical field of agricultural unmanned aerial vehicles, in particular to an unmanned aerial vehicle battery replacement system which comprises an unmanned aerial vehicle which is provided with a medicine box with a battery, and a first battery chamber for accommodating the medicine box; a battery changing platform which is provided with a load surface for bearing the unmanned aerial vehicle, and the load surface defines an X-Y direction; a rechargeable battery bin which is arranged in the extension direction of the outlet of the first battery bin and is provided with a plurality of second battery bins distributed along the Z axis and at least one standby medicine box located in one of the second battery bins; and a transfer mechanism which is arranged between the battery replacement platform and the rechargeable battery bin. According to the unmanned aerial vehicle battery replacement system, the pesticide box is actively transferred to the roller set on the transferring platfor