The invention discloses a tilt-rotor unmanned aerial vehicle. The tilt-rotor unmanned aerial vehicle comprises a wing, ailerons, an empennage, a fuselage, a power system, a control system and a ground-air data chain system; the power system comprises a power tilting mechanism, a motor and an airscrew; a pinch roller and a free-turning guide ring are arranged on the middle of the wing; the fuselage adopts the forms of load bearing bulkheads and a full skin; the bulkheads are connected and positioned through carbon tubes; the middle section of the fuselage is a circular cross section and contracts into a guide circle forward and backward; the middle section of the fuselage is provided with an undercarriage installation baffle and an equipment compartment floor which are connected with the bulkheads of the middle section of the fuselage through tenons and mortises; a platform groove is formed in the upper edge of the middle of the fuselage; a carbon tube beam groove made from a laminate on a platform is connected with a wing beam though screws; and a platform groove is formed in the upper edge of the tail part of the fuselage and is connected with a horizontal tail through screws. The tilt-rotor unmanned aerial vehicle is compact in structure, improves reliability and is suitable for application and popularization.