BANKNOTE TRANSACTION DEVICE

A paper sheet transaction device includes a drop unit (132) through which a paper sheet is dropped, a storage unit (152) that stores therein a paper sheet dropped through the drop unit, a temporary holder(140) that temporarily stores therein a predetermined number of paper sheets, and a control unit(110a)that controls transportation of the paper sheets between the drop unit and the storage unit according to a content of processing, wherein the temporary holder is removably provided in the paper sheet transaction device, and the control unit performs a control such that the temporary holder is a space that temporarily holds a paper sheet dropped through the drop unit before the paper sheet is stored in the storage unit when processing of paper sheet transaction performed by a user is performed, performs a control such that the temporary holder is a space into which at least a portion of the paper sheets in the storage unit is collected when processing of collecting the paper sheets from the storage unit is performed, and performs a control such that the paper sheets stored in advance in the temporary holder are transported to the storage unit when processing of replenishing the storage unit with the paper sheets is performed.