Based on the Lyapunov-Krasovskii stability theory, a linear controller was proposed to achieve synchronization of a delayed Lorenz chaotic system. The presented control law is simple and easy to be implemented. To illustrate the effectiveness of the proposed control algorithm and complete the synchronous simulation, the digital circuit of the delayed Lorenz chaotic system was designed via DSP builder. Finally, simulation results were given to show the effectiveness of the proposed method.