In this paper,the situation of identifying wood defects by computer vision was discussed,the hardware structure arithmetic of identifying wood defects system were put forward,based on DSP.The paper introduced a image gathering system used TMS320C80 as digital signal processor,an overview of the TMS320C80 MVP parallel processor is provided in this paper,including key features and a description of the parallel processor' s architecture.The results of image processing by the system were presented.