Aiming at the problem that the ship wake airflow and deck motion affect the landing accuracy, a longitudinal control law design method based on selfadaptive dynamic inversion is proposed. The longitudinal autopilot is designed based on adaptive dynamic inversion control, and the stability of the controller is proved in the sense of Lyapunov stability; The Monte Carlo simulation method is used to verify the automatic carrier landing control system. Imulation result show that that control law has better robustness, can weaken the influence of ship wake and deck motion, and improve the precision of automatic carry landing.