北斗卫星导航系统是我国自行研发的卫星导航系统，其卫星授时服务精度可达20ns，处于世界领先技术水平。在海事服务中引入北斗技术可有效提高公共服务能力和质量，优化海事服务整体效率，进一步提升海事服务水平。本文从北斗系统授时原理入手，探讨其与海事服务中航标管理和安全搜救业务结合的可行性。“,”BeiDou Navigation Satellite System is a system that China researched and developed it all by own. The accuracy of time service can be up to 20ns which is a world leading level. Introducing the Compass technology into the maritime service can effectively improves the capacity and quality of public services, and makes the maritime service to a further enhanced level. In this paper, the principle of time service in Compass system is introduced and the feasibility of applying it in maritime security is explored.