A paper sheet stacking apparatus includes: a feeding unit 26 configured to feed in paper sheets one by one from outside; a rotary body 10 including a holding member 16 for holding the paper sheet fed in by the feeding unit 26, the rotary body 10 being configured to be rotated with the paper sheet being held by the holding member 16, so as to transport the paper sheet along a rotational direction of the rotary body 10; and a stacking unit 32 on which the paper sheets transported by the rotary body 10 are stacked on one another.