The invention relates to a WebGIS application development technology framework based on OpenLays, which is characterized in that a GIS server is compatible with an Apache or Tomcat or Resin network server, geographic map information data are published, and a user is allowed to carry out updating, deleting and inserting operations on the data; when a GIS client browses a map, the cache service intercepts the data of the browsed map, returns cached data to the query to complete the map browsing, and calls the spatial database to generate the requested tile in real time when the query is not available, so that the map display speed is improved, and better user experience is realized; a spatial database manages spatial map data by extending an object-relational database system; the GIS clientside provides a map browsing function, and non-refresh browsing of a map page is achieved through the Ajax technology; multiple data sources are supported, including generated map data, Google and OSMmap service data.