The concept of two or three dimensional integration was first put forward by SuperMap and put it into use. The 2D & 3D integration technology system is based on SuperMap standard C++ core, and is mainly reflected in the data management integration, application integration, function module integration, expression symbol system integration and analysis function integration, which make the 3D visualization GIS not only have beautiful life like, also followed all powerful GIS function from 2D, like data storage, management, query and spatial analysis function etc.