The US military has taken lead in the development of marine equipment with its powerful technological and economical advantages. Its experience and development trend in the construction of marine equipment have important enlightenment and reference values for the naval construction of all countries in the world. This paper briefly describes the development plan of the US Navy’s military strength,and studies the development trend of the US Navy’s combat forces from 3 aspects:the composition of future force structure,the role of unmanned system and the impact of new operational concepts. 3 inspirations are summarized from 3 aspects:the top-level planning of the equipment system,the development direction of maritime advanced technology and our coping strategy.