Abstract: 2000conventional circuit breaker has high working voitage,high short circuit breaking capcity ,zero flashover,goode protection ability and small size.It is convenient to use and features of the product and its basic parameters and specifications are presented. The main applications are also given .And then the design of intelligent release, the main functions,principle of working and construalized were mainly introduced.And the design of main hardware and software were given with particular illustratin.