Computer Supported Collaborative Design(CSCD) is the applicarion of Computer Supported Collaborative Work(CSCW) in the product design field. Based on the analyse of the key technologies and problems of CSCD, a CSCD design frame faced to product design is established. Then a CSCD system faced to radar key components is founded with Pro/INTRALINK software and re-exploiting technology. Some key processes are designed too, such as database management, workflow programming, information communication, file release, conflict identification and safety management. These will provide a reference for constructing a cooperative design environment.