To easily handle personal pecuniary transaction settlement using a card company and a financial institution without using any card and to easily perform paperless (electronic data) reference to personal pecuniary transaction information.

In personal pecuniary transaction using the card company and a bank, this transaction information management method is provided with a means registering personal information in a personal information DB in a management center, a means analyzing a using institution (a card company or the bank) of a person from the personal information DB in the management center, a means registering pecuniary transaction information of the person from a retail shop (POS terminal) to a pecuniary transaction information DB in the management center, a means registering money transaction information of the card company or the bank in the pecuniary transaction information DB of the management center, and a means analyzing the personal pecuniary transaction information from the pecuniary transaction information DB of the management center.