The environment is an important reference factor for combat decisions, environment simulation directly affect the fidelity of combat simulation. This paper reviews the current status of the development of domestic and foreign simulation on naval combat environment, also analyses and lists the impact of the environment on the war in the point view of combat decision and how to build environment model in combat simulation. Meanwhile, combined with foreign advanced environmental simulation software, the current development status of foreign environment simulation is introduced , and the future development of the environment simulation in domestic battlefield is imagined. Both from the perspective of environmental models built and from the development of environmental simulation software, we put forward a good reference. It works great for the future development of domestic environmental simulation.