A sheet layering jig of the present invention include a sheet holding portion that includes a sheet holding side face to hold sheets and is arranged on a stage so that the sheet holding side face faces a work space; an electrode holding portion that includes an electrode holding side face to hold electrodes and is arranged on the stage so that the electrode holding side face faces the work space, a sheet holding guide that holds the sheets along the sheet holding side face, an electrode holding guide that holds the electrodes along the electrode holding side face, and a magnetic circuit that generates magnetic force to generate a gap between the sheets.