There is provided a stacking apparatus including: a pickup unit including a plurality of suction units that pass a first position, a second position, a third position, and a fourth position, which are disposed at equal intervals in a first direction around a circumference, in order; and a driving unit that moves the respective suction units of the plurality of suction units in order to the first position, the second position, the third position, and the fourth position and also causes up-down movement of the respective suction units. The driving unit moves up and down the suction units to pick up a first electrode sheet, a separator, and a second electrode sheet at the first position, the second position, and the third position and to stack a separate at the fourth position, moves up and down at the fourth position to stack the second electrode sheet, moves up and down at the second position to pick up a separator and to stack a separator at the fourth position, and moves up and down at the fourth position to stack a first electrode sheet.