This paper analyzes the economic development and security trends in China according to the specific circumstances of the Zhejiang MSA precinct, points out the problems in traditional means on maritime supervision and makes an in -depth analysis on them, proposes the stability, functionality,performance and scalability goals of building new maritime dynamic supervision means, and describes the key technologies for these goals, such as SOA architecture and adapter mode, framework plug-ins, distributed system and spatial index. Finally, a prospect to the future of maritime dynamic supervision system is made and a complete feasible technical solution for the construction of maritime dynamic supervision system is provided.