With the rapid development of DC motor and computer technology, the DC motor control system is widely used in many industrial fields especially in aeronautic and astronautic application. With the high response, good adaptability and flexibility, DC motor has precise and fine control performance and a wide adjustable speed range. The aim of this paper is to study the dynamic performance of DC motor control system and provide the corresponding control law so as to improve its dynamic performance. In this paper establishes the mathematical model of DC motor control system, investigates the PID control algorithm to reach the high performance of whole system. Utilizing the Matlab Simulink, the simulation results indicate that the system modeling and controller are content to the system requirement.