Adaptive fuzzy backstepping fault-tolerant control for a class of nonlinear large-scaleinterconnected switched systems with actuator failures is investigated in this paper.The system switches dynamically according to a piecewise right continuous function.Without loss of generality,stuck faults and the faults loss of effectiveness are considered.Fuzzy logic systems are utilized to approximate the unknown nonlinear functions.Considering the actuator failures,an adaptive fuzzy fault-tolerant controller is designed.It is proved that the proposed control method can guarantee that all the signals of the closed-loop system are bounded according to the Lyapunov theorem.A simulation example is presentedto demonstratethe effectiveness of the proposed control strategy.