Abstract: A SA-based rapid prototyping method is presented in this paper, which has three significant features: First, high speed and low cost for prototyping; Second, supporting reuse techniques and facilitating efficient prototyping; Third, allowing high degree concurrency and facilitating the improvement of the performance of prototype systems. In addition to the prototyping method and its execution mechanism, the issues concerned with behavior description and debugging for prototype systems are also discussed, and the corresponding solutions are given.