This paper introduces the structure of network lake database, the Web-based integrate database of TaiHu basin is taken as an example to illustrate that how to set up a network database by using WWW,commericial WebGIS software, spacital database engine and client/server technology.Lake information of Lake Taihu and Taihu basin is issued accross the internet,so that each user all over the world can view,query and download the desired datafiles.More than that, the GIS data sharing and maintaining will come true in Lake Taihu Database Website.