In order to improve the anti-wind performance of multi-rotor UAV, the aerodynamic characteristics of tilt-rotor were analyzed. By analyzing the influence of the rotor disk inclination angle on the coaxial and non-coaxial configuration of the UAV, a certain installation angle is adopted between the propeller and the motor base to increase the yaw control moment, and the inclined rotor disk design enables each rotor to have multiple rotational degrees of freedom, which can effectively correct the attitude and improve the steady-state performance of the UAV. Experiments and computational fluid dynamics (CFD) numerical simulations were carried out on twin rotors with different pitch angles. The results show that the research can provide design support for the tilting multi-rotor UAV.