Based on the controlled object of small power permanent magnet synchronous motor (PMSM), combined with the main features of digital signal processor TMS320F2812, an overall hardware design scheme had been put forward for the PMSM drive control system. Design of the power driven main circuit had illustrated, signal detection circuit and power supply circuit in detail, meanwhile introduced the main components selection and parameters calculation method. Based on the designed hardware platform, the control system of PMSM had been performed a functional test . Experimental results showed that the hareware design of control system had good reliability with stable performance and high control precision.