Unmanned aerial vehicle battery replacing device, battery replacing platform and unmanned aerial vehicle

The embodiment of the invention discloses an unmanned aerial vehicle battery replacing device, a battery replacing platform and an unmanned aerial vehicle. The battery replacing device comprises a sliding rail, a pushing part, a first battery jar and a second battery jar. The first battery jar and the second battery jar are both connected with the sliding rail through connecting parts, and the first battery jar and the second battery jar are both used for containing unmanned aerial vehicle batteries; and the pushing part is used for sliding along the sliding rail so as to push the unmanned aerial vehicle battery in the first battery jar or the second battery jar. According to the embodiment, the problems that in the prior art, a mechanical claw used for an unmanned aerial vehicle battery replacing device is complex in structure, high in price and cost, tedious in operation and the like are solved, the device is simple in structure, portable and easier to install and adjust, and the manufacturing and maintaini