Carrier aircraft landing is a system engineering with strong nonlinearity,strong coupling,and complex environmental interference.The automatic landing task under the fault condition of the carrier aircraft is extremely risky and challenging.A sliding mode fault-tolerant control method based on Extended State Observer (ESO) compensation is proposed for the deterioration of control system performance caused by random actuator drift failures and partial damage failures during landing.The method adopts ESO to accurately estimate the unmodeled dynamics of the system,the aft wake disturbance and the fault state in real time,and then a sliding mode control law is designed to ensure error convergence,and the differential signals of all orders required by the control law are obtained by using a high-order Linear Tracking Differentiator (LTD).The simulation results show that the method designed in this paper has good tracking performance,anti-interference ability and fault tolerance.