Conventional single closed-loop system of DC motor with speed-feedback has poor performance when some stochastic disturbances take place. To handle this shortcoming, the control system with full-state feedback and integral output feedback of DC motor is proposed. The state-space model of the full-state feedback of DC motors is established. The feedback gains of the control system are optimized by Particle Swarm Optimization algorithms based the simulation model. The simulation results show that the control system with full-state feedback of DC motors has better dynamic performance.