To simply confirm the residual monetary amount information of a pre-paid card integrating an IC and to recycle the used card.

A packing material 8 is filled in holes made in advance at each position corresponding to each specified residual monetary amount information 6 decided in advance in a card main body 2, and every time the residual monetary amount information is reduced to each specified residual monetary amount information or below by a card processing unit, the packing material 8 filled in a hole 7 at a position corresponding to the residual monetary amount information is punched. Furthermore, the packing material 8 is filled in each hole 7 of the used pre-paid card whose residual monetary amount information is zero, a card writer is used to write new residual monetary amount information to the IC and the card is issued again as a new pre-paid card 1.