The system queries the central SQL Server 2000 database of mesoscale automatic weather stations by VB Script. The automation function of Surfer 8 is used to analyze the gathered data in VB 6.0. The generated graphs are copied to the picture frame through the system clipboard. The queryinginformation input module and graph display module are compiled into Active X and linked into the Web page. The graphic service of any period to the users through the Internet is realized. The problem that most Web sites supply only the graphs of a specific period is resolved. Because the module and Active X technology are applied, the program editing workload is reduced, and the issuance is easier.