The dual-CPU board includes two microprocessors：LF2407 and VC33，the characteristics of the two microprocessors are brought into full play. PWM logic cells and rich peripheral interfaces of LF2407 complete the functions of motor control, data input and output. Complex control algorithms are completed by taking advantages of floating point operations of VC33. The test proved that the system has high hardware and software control performance, reliable, suitable for a variety of complex applications.