An anti-disturbance control method relying on the sliding-mode method is introduced to solve the problem of anti-wind disturbance control of quadrotor UAV. This method is designed for practical situations involving control allocation and actuator dynamic processes. The motion model of quadrotor UAV, wind disturbance model and dynamic model of the actuators are first constructed. Then, a nonlinear control allocator is designed, and two sliding-mode controllers are designed for position and attitude subsystems, and sliding-mode controller stability is verified using Lyaponov stability analysis. Finally, a simulation comparison with the traditional PID control method is carried out to prove the performance superiority of the sliding-mode controller.