To deal with actuator fault of loss of effectiveness,drift fault and air-wake disturbance,an adaptive fixed-time fault-tolerant control method under direct lift is proposed.Firstly,a new precise-feedback linearization model of the carrier-based aircraft with flaps is established,and based on the new fixed-time stability theorem,a sliding mode controller is designed for the direct lift mode,which improves the convergence speed and carrier landing accuracy of the system.Then,an adaptive updating law in the form of nonlinear differential equations is introduced to online estimate the minimum value of the fault factor and the upper bound of the lump disturbance,and compensate for the influence of the faults and disturbance.The fixed-time convergence of the closed-loop system is proved based on Lyapunov method.Finally,a simulation is conducted in comparison with other methods,and the results prove the effectiveness and superiority of the designed method.