A pulse shower device comprising: - a water dispersion plate that comprises: i) an inner surface and an outer surface; and ii) a plurality of shower holes that penetrate from the inner surface to the outer surface; and - an impeller that comprises: i) an inner shower hole blocking portion that is formed over a predetermined circumferential length along the inner surface in a downstream portion of the inner surface of the water dispersion plate, and covers a part of the plurality of shower holes; ii) an inner shower hole opening portion that opens toward the inner surface; iii) a plurality of outer shower hole blocking portions; iv) a plurality of outer shower hole opening portions; v) a plurality of vanes for rotating the impeller around an axis when a water stream hits the vanes, some of the vanes being coupled together by a plurality of rib-shaped coupling portions (109, 111, 113), each rib-shaped coupling portion having a concentric circular arc shape; vi) an inner peripheral portion provided with said inner shower hole blocking portion and said inner shower hole opening portion; and vii) an outer peripheral portion, that is provided on an upstream portion of the inner surface of the water dispersion plate, and that is provided with the outer shower hole blocking portions and the outer shower hole opening portions, wherein the outer shower hole blocking portions and the outer shower hole opening portions are alternately arranged in a circumferential direction on the same circumference, and rotate around the axis through the rotation of the impeller to intermittently block and open the shower holes, and intermittently discharge water in pulses from the shower holes, wherein the number of outer shower hole blocking portions and outer shower hole opening portions that are arranged on the same circumference at the outer peripheral portion is greater than the number of inner shower hole blocking portions and inner shower hole opening portions at the inner peripheral portion, respectively, and wherein a time interval from the blocking of the shower holes at the outer peripheral portion to the closing thereof and from the opening thereof to the blocking thereof is shorter than a time interval from the blocking of the shower holes at the inner peripheral portion to the closing thereof and from the opening thereof to the blocking thereof. - a water dispersion plate that comprises: i) an inner surface and an outer surface; and ii) a plurality of shower holes that penetrate from the inner surface to the outer surface; and i) an inner surface and an outer surface; and ii) a plurality of shower holes that penetrate from the inner surface to the outer surface; and - an impeller that comprises: i) an inner shower hole blocking portion that is formed over a predetermined circumferential length along the inner surface in a downstream portion of the inner surface of the water dispersion plate, and covers a part of the plurality of shower holes; ii) an inner shower hole opening portion that opens toward the inner surface; iii) a plurality of outer shower hole blocking portions; iv) a plurality of outer shower hole opening portions; v) a plurality of vanes for rotating the impeller around an axis when a water stream hits the vanes, some of the vanes being coupled together by a plurality of rib-shaped coupling portions (109, 111, 113), each rib-shaped coupling portion having a concentric circular arc shape; vi) an inner peripheral portion provided with said inner shower hole blocking portion and said inner shower hole opening portion; and vii) an outer peripheral portion, that is provided on an upstream portion of the inner surface of the water dispersion plate, and that is provided with the outer shower hole blocking portions and the outer shower hole opening portions, i) an inner shower hole blocking portion that is formed over a predetermined circumferential length along the inner surface in a downstream portion of the inner surface of the water dispersion plate, and covers a part of the plurality of shower holes; ii) an inner shower hole opening portion that opens toward the inner surface; iii) a plurality of outer shower hole blocking portions; iv) a plurality of outer shower hole opening portions; v) a plurality of vanes for rotating the impeller around an axis when a water stream hits the vanes, some of the vanes being coupled together by a plurality of rib-shaped coupling portions (109, 111, 113), each rib-shaped coupling portion having a concentric circular arc shape; vi) an inner peripheral portion provided with said inner shower hole blocking portion and said inner shower hole opening portion; and vii) an outer peripheral portion, that is provided on an upstream portion of the inner surface of the water dispersion plate, and that is provided with the outer shower hole blocking portions and the outer shower hole opening portions,