Nowadays, computer has become a very important device in daily life. Being supported by the development of information technology, the use of internet is also commonly used daily to access information and communication. With internet, everyone can access information from all over the world easily, cheaply, quickluy and affectively. The development of information technology, partly, it can be applied to make transaction of selling through web; in which, the seller can put merchandises to sell in the web. And consumer candidate can seek and order via web with no limitation of space and time. By using information system application of web-based selling, a company can introduce products and order them through web-base. In this way, the seller can get some advantages; for example a wider area of selling, economical marketing cost, economical infrastructure. And from consumers point of view, they will have advantages because they do not neet to stand up from their seats and it is more efficient in terms of time.  Key words : information technology, information system application, web-based selling
