To improve the convenience of each user by allowing registration/update of own business card information without operation or the like by the user with special consciousness, to certainly prevent erroneous input of the business card information, and to reflect the intention of the user or a manager about update and notification of the business card information.

New registration and update of the user's business card information is performed from a manager terminal 40 to a business card information management server 10. When the business card information on a business card information database is updated by the manager, this system notifies a predetermined user terminal set by the user or manager with a notification destination setting means of the fact that the business card information is updated.