The invention discloses a reconnaissance and attack integrated upper air unmanned aerial vehicle with the variable flight states. The reconnaissance and attack integrated upper air unmanned aerial vehicle comprises a vehicle body and a power system. A wing and body combination layout is adopted by the vehicle body, and the vehicle body forms an aerodynamic configuration similar to a rhombus by splicing two two-way triangular wings. The upper surface of the vehicle body is in a protruding streamline shape, and the lower surface of the vehicle body is in a smooth flat shape. The two two-way triangular wings are two isosceles triangles equal in size. The bottom sides of the two two-way triangular wings are spliced. The power system is arranged at the spliced position of the vehicle body and comprises a power device and a lift force device. The power device is used for achieving the switching between the supersonic velocity flight state and the subsonic velocity flight state. The lift force device is used for providing lift force needed for ascending of the vehicle body. By the adoption of the reconnaissance and attack integrated upper air unmanned aerial vehicle, the subsonic velocity flight state and the supersonic velocity flight state can be switched, the beneficial effects that the maneuverability is high, and the largest flight height is large are achieved, and the unmanned aerial vehicle can be used as an unmanned aerial vehicle with continuous deterrent force and fight potential to be put into use.