摘要：Based on an appropriate Lyapunov function,this paper analyzes the design of a delay-dependent robust H_(∞)state feedback control,with a focus on a class of non-linear uncertainty linear time-delay systems with input delay using linear matrix *** the condition that the nonlinear uncertain functions are gain bounded,a sufficient condition dependent on the delays of the state and input is presented for the existence of H_(∞)*** proposed controller not only stabilized closed-loop uncertain systems but also guaranteed a prescribed H_(∞)norm bound of closed-loop transfer matrix from the disturbance to controlled *** solving a linear matrix inequation,we can obtain the robust H_(∞)*** example is given to show the effectiveness of the proposed method.