To provide a card purchase information management system in which purchase information acquired when a customer has purchased a commodity with a card in managed in a batch, and the purchase information managed in the batch can be quickly presented to the customer in response to the request of the consumer.

An equipment 74 for a communication agent of a communication agent D equipped with an information box 71 is arranged in the middle of a communication line 6 for connecting terminal equipment 5 of a seller B to a data processor 8 of a card company C, and purchase information acquired when a consumer A has purchases merchandise 3 from the seller B by a card 2 is transmitted from the seller terminal 5 through the communication line 6 to the equipment 7 for the communication agent, and the purchase information is stored and managed in the information box 71 of the equipment 7 for the communication agent, and the purchase information associated with the consumer A stored in the information box 71 is returned to the consumer terminal equipment 1, and presented to the consumer in response to a purchase information request from the consumer terminal equipment 1.