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Aiming at the problem of poor capability of four rotor aircraft controlled by traditional optimization control method, a new stability optimization control method is proposed. By studying the dynamics principle, the forces acting on the four rotor in the air are analyzed, and the rotational speed and the plane velocity of the rotor are calculated. Based on slip theory and PID control theory, the control model of four rotor aircraft is built, and the control principle of the aircraft is analyzed. The working process of the control system is expounded. In order to detect the actual work effect, the comparison experiment with the traditional control method is carried out. The results show that the orbit of the aircraft controlled by the PID method is closer to the expected orbit at the same time, and it is stronger in stability and robustness than in the traditional method.