A bank-note processing device wherein disposed between a pair of rotary drums (22, 23) is a stacker lever (53) that presses that portion of the bank-note (31) inserted in bank-note guide slits (22b, 23b) which is positioned on the side of a bank-note reverse-flowing-preventive lever (32) toward a stacker (20) in operative association with the movement of a stacker chute (51), whereby even if a large number of wrinkled bank-notes are received in the stacker, jamming of bank-notes is minimized.