Uninterruptible power supply power supply device and power supply method

The invention discloses an uninterruptible power supply power supply device and a power supply method. The power supply device comprises an uninterruptible power supply, a control module, a power distribution module, a power supply module, a battery management module and an expansion power supply module, the power supply module is used for supplying power to airborne equipment of the unmanned aerial vehicle, the battery management module is used for charging and discharging a storage battery of the unmanned aerial vehicle, and the expansion power supply module is used for supplying power to tested equipment. According to the invention, the unmanned aerial vehicle and the tested equipment can be continuously supplied with power through the uninterruptible power supply without commercial power, the power supply module, the battery management module and the expansion power supply module can be controlled and supplied with power in real time through the control module and the power distribution module, and the te