To provide a card stacker and a card issuing machine, comprising a weight for adding a load from above to cards in a card stacker having a number of cards stacked therein, the weight being provided so as not to be lost and to facilitate handling of the cards.

The card stacker comprises a bottom plate 13 for stacking cards 1 thereon, having a strip opening part 17 for permitting protrusion of a feeding means 51, side plates 14 regulating four sides of the cards 1 and vertically aligning them, a card stacking area 15 formed by the bottom plate 13 and the side plates 14 to stack the cards 1, and a lid plate 16 closing an inlet 12. A slit rail 21 extending vertically and curved to the outward of the edge of the inlet 12 is formed in a part of the side plate 14, and the slit rail 21 includes the weight 2 for adding a load from above to a plurality of stacked cards 1 and an engagement member 3 connected with the weight 2 and slidably engaged with the slit rail 21.