Night flight airborne early warning device

The invention discloses a night flight airborne early warning device which comprises an unmanned aerial vehicle assembly, the unmanned aerial vehicle assembly is provided with an upper mounting plate and a lower mounting plate, a camera device is arranged at the edge of the upper surface of the lower mounting plate, a laser range finder is arranged at the edge of the lower surface of the lower mounting plate, and the night flight airborne early warning device further comprises a gravity center adjusting assembly which is arranged below the unmanned aerial vehicle assembly. The gravity center adjusting assembly is provided with a mounting base body, a winding motor and a rope body are arranged in the mounting base body, a first through hole is formed in the lower portion of the mounting base body, one end of the rope body penetrates through the first through hole, a driver is arranged on the upper middle portion of the rope body, a connecting rod is arranged on the driver, and adjusting rotary blades are arranged at the two ends of the connecting rod. The laser range finders and the camera devices are arranged around the unmanned aerial vehicle assembly, obstacle avoidance data and images are provided by means of combination of visual obstacle avoidance and laser obstacle avoidance, the unmanned aerial vehicle has the advantages of being power-saving, long in detection distance, high in scanning speed and good in light interference resistance, and the functions of multi-angle distance measurement and no dead angle in distance measurement can be achieved.