RS (Remote Sensing), GIS (Geographic information System) and ES (Expert System) are used in many fields. They are powerful tools for obtaining, organizing, analyzing and displaying spatially referenced data, estimating resources, providing relevant information and so on. So their introduction to marine fisheries is essential to take sustainable development of marine fisheries in east China Sea into reality and improve marine fisheries management in China. Based on the marine fisheries information, using Geographic Information System and Expert System, we have established the Chinese Marine Fisheries Remote Sensing Information Service System. This system started in 1997. It extended the application of the advanced technology such as GIS, RS, ES to marine fisheries. In this paper, the recent works and improvement are introduced.