To provide a merchandise ordering and order receiving system in which participation of a number of component manufacturers in to this site, and choices by the purchaser of the components are remarkably increased compared with the conventional system, and which can cope with the needs of the purchaser more carefully.

A business processor 11 carries component introduction information introducing components which can be supplied by manufacturers A to C on a web page and transmits the web page to communication terminals 14A to 14C in response to accesses from the communication terminals 14A to 14C on the side of purchasers A to C. Later, when product information selected by the purchasers on the basis of the content carried on the web page and product information comprising combination of the component information are received from the communication terminals 14A to 14C on the side of the purchasers, the received component information and product information are transmitted to a communication terminal 12 on the side of the component manufacturer and to a communication terminal 13 on the side of a product manufacturer respectively.