A cash dispensing machine includes a validation unit 13 for validating cash inserted through an insertion slot 8, a detachable storage unit 30 for storing cash validated by the validation unit 13, communication means provided in each of the validation unit and the storage unit, for transmitting and receiving information of the cash related to cash validated by the validation unit and an ID information of the cash and a memory unit 37 provided in the storage unit 30, for storing information of the cash transmitted from the validation unit 13 in association with the ID information.