To provide a point management system, a point management method and a program for it, capable of enabling a customer to newly create a member card, and immediately join without procedure such as ID generation, entry of personal information, and make various maintenance such as confirmation on the number of points, confirmation of personal information and updating from any place through a network.

When the customer purchases a commodity or the like at a store window, each member store gains access to a home page or a database of an operating main company using a communication network to transmit customer and purchase information (point). At the time, the number that can uniquely specify the customer in person by certain property and be opened to the respective member stores is used as the customer ID. The personal information is registered and updated in the personal information database of the operating main company, and points are added to the event database. At this time, a password can be updated, given or returned according to the option of the customer.