Abstract: For networked control systems with time-delay and random data packet dropout, a stochastic control system model was established containing Bernoulli distributed stochastic variables. Furthermore, the condition of the state feedback controller that makes the closed loop system exponentially mean-square stable is derived by means of Lyapunov theory and robust control theory. The design method is also given in terms of linear matrix inequalities (LMI). A simulation example was used to demonstrate validity of the proposed method.