A banknote handling apparatus that performs at least one of a banknote depositing process and a dispensing process and transports a banknote along a transport path , comprising: a transport member that is slidable along a widthwise direction of the transport path and transports the banknote in both forward and reverse directions along the transport path ; a banknote detection unit that is arranged on an upstream side of the transport member in a banknote transport direction along the transport path and detects a position of the banknote in the widthwise direction of the transport path ; and a control unit that calculates an amount of movement of the transport member based on a position of the banknote in the widthwise direction of the transport path detected by the banknote detection unit and a previously set predetermined position of the banknote in the widthwise direction of the transport path and performs a control so as to slide the transport member by the calculated movement amount when the banknote is transported by the transport member , characterized in that the transport member is arranged in a first guide portion that constitutes the transport path , the first guide portion is slidable along the widthwise direction of the transport path integrally with the transport member , the first guide portion comprises a pair of first guide portions arranged so as to be separated from each other, in which the transport path is formed between the first guide portions , and the pair of first guide portions is movable so that a distance between the first guide portions on an inlet side of the transport path arranged between the pair of the first guide portions and a distance between the first guide portions on an outlet side of the transport path can be respectively changed. a transport member that is slidable along a widthwise direction of the transport path and transports the banknote in both forward and reverse directions along the transport path ; a banknote detection unit that is arranged on an upstream side of the transport member in a banknote transport direction along the transport path and detects a position of the banknote in the widthwise direction of the transport path ; and a control unit that calculates an amount of movement of the transport member based on a position of the banknote in the widthwise direction of the transport path detected by the banknote detection unit and a previously set predetermined position of the banknote in the widthwise direction of the transport path and performs a control so as to slide the transport member by the calculated movement amount when the banknote is transported by the transport member , characterized in that the transport member is arranged in a first guide portion that constitutes the transport path , the first guide portion is slidable along the widthwise direction of the transport path integrally with the transport member , the first guide portion comprises a pair of first guide portions arranged so as to be separated from each other, in which the transport path is formed between the first guide portions , and the pair of first guide portions is movable so that a distance between the first guide portions on an inlet side of the transport path arranged between the pair of the first guide portions and a distance between the first guide portions on an outlet side of the transport path can be respectively changed. <EOS>