Building Multi-DSPs system is an effective way to elevate the system processing ability. In this paper, a VXI-based dual-bus multi-DSPs real-time image processing system is presented. With VXI, the system becomes modularity, easy to modify and extend. At the same time, specified bi-directional high-speed bus groups are adopted to overcome the efficiency rebate produced by bandwidth limit of VXIbus. Performance of this system compared with some other realization is provided at the end of the article.