The invention relates to a Web-based seismic base map and profile linkage method; the method comprises the specific aspects: seismic base map and profile curves are drawn by means of browser HTML5 andWebGL techniques; work area and bed curve graphs are drawn on a base map page; a user may transversely or longitudinally make slicing on the base map page; on a profile page, a database is searched for related data according to the user's transverse or longitudinal cutting related data so as to draw profile curve graphs; the user may draw graphs on the curve graphs of the profile page; bed curvegraphs are displayed on the base map page according to data of the graphs that the user drawn on the profile page; the base map page and the profile page provide data sharing and monitoring value variation by means of the browser localStorage technique, and linkage drawing of the base map and profile curve graphs is achieved according to the user's operations.