We investigate H∞ state feedback control for a networked control system with time-varying delays and parameter uncertainties. A time-delay dependent robust stability criterion satisfying a prescribed H∞ norm bound is given in the form of linear matrix inequalities by using the Lyapunov-Krasovskii functional method. Then the criterion is transformed into a sufficient condition for H∞ control, the condition obtained is also used to design an H∞ state feedback controller. A numerical example is given to illustrate the effectiveness and feasibility of the proposed approach.