Abstract: With the progress of the computer virtual reality theory， technology and method， the 3D visualization of marine information technology， which has increasingly become a full range of marine observation， research and exploration， is one of the important means. Based on 3A level business engine — unreal Engine 4， the developers simulated the sea waves and currents nearby Xiamen Marine Environment Monitoring Station， as well as sunrise and sunset and weather conditions such as virtual reality and visualization. For the actual needs of marine scientific research， a threedimensional realtime rendering and simulation for red tide， seabed terrain mapping have designed and reproduce specifically in relevant of hydrometeorology. This is of important practical significance．