The data model and main functions of the software EA 2000 for marine fisheries electronic mapping system have been introduced systematically in this paper. EA2000 software adopts object2oriented data model , and a hierarchical approach for organizing electronic map data. The software has many functions such as multi2 sources data input ; layer2map2atlas making, mapping template; spatio2temporal dynamic display , dynamic monitoring of fishing boats , zoom in / out and so on.