Micromouse is an intelligent walking robot using embedded technology, depending on sensors for navigation, which consists of the ability to collect and gather information of the complex “maze" after forward and backward searching without human inspection. The micromouse memory the information automatically and select the shortest path, use smart algorithm to reach destination quickly. Servo controller based on single-chip microcomputer can not meet micromouse system special requirements of high speed and high stability. Hardware and software of servo controller based on DSP and FPGA was discussed and realized, and experimental results are also presented.