Variable pitch quadrotor aircraft can control the tension of each corresponding rotor by changing the pitch of four rotors,thus adjusting the quadrotor aircraft′s posture and position.Compared with the traditional single speed regulation,quadrotor aircraft′s pitch control strategy is of great significance for improving its own maneuverability and reliability,which has a broad application prospect in micro aircraft′s formation flight and precise mission in the future.To analyze the realizability to control the variable pitch quadrotor aircraft′s wide-angle nonlinear motion,a non-linear dynamic model of aircraft is established with Eulerian approach,and a non-linear control method with feedback linearization is applied to the established aircraft model.Finally,by simulating the quadrotor aircraft′s motion process under non-linear control with Simulink software,the effect of nonlinear control theory on quadrotor aircraft′s motion control is discussed,which provides a reference for realizing control of variable pitch quadrotor aircraft′s wide-angle nonlinear motion.