Forum, also called BBS, is short for Bulletin Board System. BBS is a web system that often seen on Internet for information service. Its main purpose is to help the viewer to communicate with each other, attract user and serve them. BBS was originating in the 1980's. At first it’s only an online flat roof that is used for delivers announcements and discusses problems. With technical developments and the popularity of Internet, its function becomes more and more powerful. Welcomed by large amount of net friends, more and more business websites pay regard to the BBS and make BBS an online communicate flat roof for delivers announcements and discusses problems. Forum combines many functions in one. Many kinds of plug-ins in the fashion help these functions to be more disparate, however, the main function of BBS is to deliver announcements and discuss problems. Based on that, other functions of BBS could be extended, for example, honor system of the net friends and sugar up the interface of the forum. Due to the main function of the BBS, developments of forum come down to developments in technology and application technology in database. Now we have ASP, ASP.NET, PHP, JSP and so on. This paper use ASP and some VBScript computer language to carry out the mainly function of the BBS. Databases like MYSQL and Oracal is popular now days. We choose Access produced by Microsoft Company. It is easy to span a simple forum, hardly any programs to install. The design flow of this paper starts with analyzing the needs of the system, by confirming the processes and designs of the system, dividing modules, then designs of date and structures, finally developments and programming of every module.