Aiming at ordinary development DC motor existence shortcomings as complex algorithm and difficult real-time adjustment, the Hardware-In-the-Loop(HIL) platform is put up for single-side wheel steering system. The structure of software and hardware and important component is described in detail, and the real-time simulation model is developed using Simulink and dSPACE. With interest of better effects on real time control steering motor is achieved with ControlDesk by means of on-line tuning, monitoring, debugging and optimization of PID control parameters. The experimental results demonstrate that dSPACE system applied in DC motor has the advantages of good real-time control effect and effectively shorten controller development cycle and cost for the sake of establishing foundation on the proceeding research.