The invention discloses a tandem vector dual-rotor electric vertical take-off and landing unmanned aerial vehicle, and belongs to the field of design of vertical take-off and landing aircrafts. The unmanned aerial vehicle has two flight states of vertical take-off and landing, hovering (vertical flight state) and high-speed forward flight (horizontal flight state), and can effectively solve the flight control problems of vertical flight, horizontal flight (transition state) and horizontal flight (slew state) through vector thrust rotor wings. The unmanned aerial vehicle comprises a fuselage, wings respectively positioned on the left side and the right side of the fuselage, and a front rotor and a rear rotor respectively positioned on the front side and the rear side of the fuselage; the front rotor and the rear rotor are positioned on the axis of the fuselage and are longitudinally arranged; and at least one of the front rotor and the rear rotor is a dual-shaft tilt rotor system. Compared with the prior art, the double-shaft tilt rotor system can realize attitude control of the unmanned aerial vehicle in the whole process, and the unmanned aerial vehicle has the advantages of simple mechanism, controllable transition state and high structural pneumatic efficiency.