The invention relates to the technical field of power supplies, in particular to an unmanned aerial vehicle charging method and system and an unmanned aerial vehicle. The method comprises the steps that when an unmanned aerial vehicle battery supplies power normally, the unmanned aerial vehicle is controlled to be in a data transmission mode, and the unmanned aerial vehicle battery supplies power to an unmanned aerial vehicle control system and a motor; the super-capacitor module is charged through the unmanned aerial vehicle battery until the super-capacitor module is fully charged; when it is detected that the battery of the unmanned aerial vehicle is removed, the unmanned aerial vehicle is controlled to be in a standby mode, and power is supplied to an unmanned aerial vehicle control system and a motor through the super-capacitor module. When the unmanned aerial vehicle is normally used, the super-capacitor module is charged through the unmanned aerial vehicle battery, when the battery is replaced, the super-capacitor module is discharged, standby electric energy stored by the super-capacitor module generates current to supply power to an unmanned aerial vehicle control system and a motor, and after the battery is replaced, a new unmanned aerial vehicle battery can charge the super-capacitor module. The unmanned aerial vehicle does not need to be powered off and restarted in the battery replacement process of the unmanned aerial vehicle, and the working efficiency of the unmanned aerial vehicle is greatly improved.

本申请涉及电源技术领域，具体涉及一种无人机充电方法、系统及无人机。该方法包括当无人机电池正常供电时，控制无人机为数据传输模式，并通过无人机电池为无人机控制系统和电机供电；通过无人机电池为超级电容模块充电，直至超级电容模块充满电；当检测到无人机电池被移除时，控制无人机为待机模式，并通过超级电容模块为无人机控制系统和电机供电。在无人机正常使用时通过无人机电池为超级电容模块充电，在更换电池时通过超级电容模块放电，其储备的备用电能产生电流，为无人机控制系统和电机供电，当电池更换完成后，新的无人机电池会为超级电容模块充电。无人机换电池过程中无人机不需要断电重启，极大的提高了无人机的工作效率。