A paper sheet storage unit 101 is opened upward and forward. Holding members 30, 32 are respectively configured to be reciprocated, between a waiting position and a holding position, by a lifting and lowering mechanism 35. When the respective holding members 30, 32 are in the waiting position, such holding members 30, 32 can serve as a guide surface, on the back side of the paper sheet storage unit 101, for guiding a batch of paper sheets stored in the paper sheet storage unit 101. Meanwhile, when the respective holding members 30, 32 are in the holding position, the holding member 32 is in contact with a top face of the paper sheet present at the lowest layer of the paper sheets stored in the paper sheet storage unit 101, and serves to press the paper sheet downward. A controller 90 controls the lifting and lowering mechanism 35, such that the lifting and lowering mechanism 35 moves the holding members 30, 32 to the waiting position, when a paper sheet storage amount detector 74 detects that the amount of the paper sheets stored in the paper sheet storage unit 101 is greater than a preset amount, while the lifting and lowering mechanism 35 moves the holding members 30, 32 to the holding position, when the paper sheet storage amount detector 74 detects that the amount of the paper sheets stored in the paper sheet storage unit 101 is less than the preset amount.