To provide an on-line member introduction system for introducing a new member by a home page through the Internet.

In this on-line member introduction system, which is an on-line member introduction system operated through the Internet, when a member gains access to the member home page, the member introduction page is opened. When the member introducing a new member inputs the outline of designated matters containing the mail address and name of a member to be introduced, the data on the concerned designated matters are stored in the data base of the head office of a club and an identification password used by the member to be introduced is generated, and according to the mail address, a guide mail is automatically delivered to the mail post of the member to be introduced with the identification password. When the member to be introduced who has confirmed the guide mail desires to become member of the club, additional designated matters concerned with personal attribute items are inputted to confirm application, and entrance procedure is performed to store the data in the data base of the head office of the club.