Abstract: The problem of robust fault-tolerant control for uncertain networked control system(NCS) with data packet dropout is studied.Based on the actuator continuous gain faults,considering that Markovian packet dropouts exist in forward network channel and backward network channel,and the closed-loop faulty NCS with structured uncertainty is modeled as Markovian jump linear system.Based on this model,the necessary condition of the stochastically stable for the closed-loop faulty NCS is given by using Lyapunov stability theory and matrix inequality technique.At the same time,the controller design method is proposed via the cone complementary linearization method.Finally,the numerical example and simulations demonstrate the validity of the proposed method.