A conveying device configured to align a plurality of fuel cells stacked on each other is provided, and the conveying device may include: a magazine accommodating the plurality of fuel cells in the stacked state along a first direction and having one end in the first direction being open; a first screw extending along the first direction and having an outer peripheral surface with a helical thread groove, in which the outer peripheral surface of the first screw contacts the plurality of fuel cells in a second direction perpendicular to the first direction when the plurality of fuel cells is accommodated in the magazine; and a screw driving unit configured to rotate the first screw.