Abstract: Relying on the communication network of observation stations in the meteorology department all over China, the research on agrometeorological information share and release technology based on WebGIS is developed. The agrometeorological information is standardized basing on the standards of meteorology industry and network data, then the network share database required by WebGIS application system is established using SQ L Server 2000, and the agrometeorological information service WebGIS platform is set up using IIS and ArcIMS (Internet Map Server). The application software about developing server applying Java Script、ArcGIS and management tool of ArcIMS Manager. The two-way search function from attribute to space and from space to attribute of agrometeorological information as well as thematic map analysis function of agrometeorological information are realized on client which can supply detailed、abundant and high quality agrometeorological information services for users.