A stacking apparatus comprising: a pickup unit including a plurality of suction units (HA,HB,HC,HD) 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: a first supplying unit that supplies a first electrode sheet to the first position; a second supplying unit that supplies a sheet-like separator to the second position; a third supplying unit that supplies a second electrode sheet to the third position; a discharging unit that discharges, from the fourth position, a layered stack in which the first electrode sheet and the second electrode sheet have been alternately stacked with the separator in between; and a driving unit that moves the respective suction units (HA,HB,HC,HD) of the plurality of suction units (HA,HB,HC,HD) 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 (HA,HB,HC,HD), characterized in that the up-down movement includes: a first operation that moves the suction units (HA,HB,HC,HD) that have arrived at the first position, the second position, and the third position up and down to respectively pick up a first electrode sheet, a separator, and a second electrode sheet and moves the suction unit (HA,HB,HC,HD) that has arrived at the fourth position up and down to stack a separator; a second operation that moves the suction unit (HA,HB,HC,HD) that has arrived at the fourth position up and down to stack a second electrode sheet; a third operation that moves the suction unit (HA,HB,HC,HD) that has arrived at the second position up and down to pick up a separator and moves suction unit (HA,HB,HC,HD) that has arrived at the fourth position up and down to stack a separator; and a fourth operation that moves the suction unit (HA,HB,HC,HD) that has arrived at the fourth position up and down to stack a first electrode sheet. a pickup unit including a plurality of suction units (HA,HB,HC,HD) 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: a first supplying unit that supplies a first electrode sheet to the first position; a second supplying unit that supplies a sheet-like separator to the second position; a third supplying unit that supplies a second electrode sheet to the third position; a discharging unit that discharges, from the fourth position, a layered stack in which the first electrode sheet and the second electrode sheet have been alternately stacked with the separator in between; and a driving unit that moves the respective suction units (HA,HB,HC,HD) of the plurality of suction units (HA,HB,HC,HD) 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 (HA,HB,HC,HD), a first supplying unit that supplies a first electrode sheet to the first position; a second supplying unit that supplies a sheet-like separator to the second position; a third supplying unit that supplies a second electrode sheet to the third position; a discharging unit that discharges, from the fourth position, a layered stack in which the first electrode sheet and the second electrode sheet have been alternately stacked with the separator in between; and a driving unit that moves the respective suction units (HA,HB,HC,HD) of the plurality of suction units (HA,HB,HC,HD) 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 (HA,HB,HC,HD), a first operation that moves the suction units (HA,HB,HC,HD) that have arrived at the first position, the second position, and the third position up and down to respectively pick up a first electrode sheet, a separator, and a second electrode sheet and moves the suction unit (HA,HB,HC,HD) that has arrived at the fourth position up and down to stack a separator; a second operation that moves the suction unit (HA,HB,HC,HD) that has arrived at the fourth position up and down to stack a second electrode sheet; a third operation that moves the suction unit (HA,HB,HC,HD) that has arrived at the second position up and down to pick up a separator and moves suction unit (HA,HB,HC,HD) that has arrived at the fourth position up and down to stack a separator; and a fourth operation that moves the suction unit (HA,HB,HC,HD) that has arrived at the fourth position up and down to stack a first electrode sheet.