Abstract: With development of high performance computing platform, it can accelerate study of software radar design. The cluster platform applied in software radar system developing was summarized and introduced to the software radar developing. Based on cluster platform, domain engineering modeling of software radar was done, and software radar system architecture as well as software architecture were generated. Open architecture with cluster platform could make full reuse of system's developing process, requirement analysis, SA, domain components, etc. which could improve developing efficiency and software quality effectively of SA.