A device for producing a packaged electrode includes: a pair of cylindrical rotating bodies arranged with their respective outer peripheral surfaces facing each other, and each configured to convey a separator by rotating while holding the separator on the outer peripheral surface; an electrode conveyance section configured to convey an electrode having a predetermined shape in a direction tangential to the cylindrical rotating bodies toward a gap between the cylindrical rotating bodies; and a joining section which joins the separators together, with the electrode sandwiched between the separators conveyed by the cylindrical rotating bodies. Also, the electrode is packaged with the separators by simultaneously delivering and laminating the separators from the rotating cylindrical rotating bodies to both surfaces of the electrode being conveyed by the electrode conveyance section, and joining together the separators delivered to both surfaces of the electrode by means of the joining section.