To provide a stacking and separating device for box pallets which can attain installation space saving, and which permits stacked box pallets to be flown in the same direction as a belt and allows carrying-in and -out of the box pallets to be done from multiple directions.

This construction is formed so that a device may be made compact by turning a claw 3, which supports the bottom part of a box pallet. The construction is constituted of a frame body 1 formed by disposing a rectangular upper frame 12 at the middle upper part of a conveying device 6 and erecting struts 11 below the four corners of it, a pair of movable frame bodies 2 which are disposed between the struts 11 so as to face each other with the conveying device 6 being put between them and which can elevate freely, a plurality of turnable claws 3 and a turning means 4 formed so as to turn the respective claws 3 in the respective movable frame bodies 2, and a vertically moving means 5 which is formed at the frame body 1 so as to vertically-move the movable frame body 2 formed with a plurality of claws 3.