PROBLEM TO BE SOLVED: To provide an apparatus for producing hydrogen water, and a method for producing hydrogen water capable of producing hydrogen water dissolved with hydrogen at a high concentration.SOLUTION: An apparatus for producing hydrogen water comprises: a water-to-be-treated-supplying unit 10 for supplying water to be treated; a discharge opening 2 for discharging the water to be treated; a pipe channel 3 for connecting the water-to-be-treated-supplying unit 10 with the discharge opening 2; a Mg unit 40 provided on the pipe channel 3 for reacting magnesium particles housed in a case with water to be treated to generate hydrogen; a magnetic unit 30 provided on a primary side of the Mg unit 40 of the pipe channel 3 for impressing magnetic field to the water to be treated to subjecting to magnetic treatment; an electrolysis unit 50 provided on a secondary side of the Mg unit 40 of the pipe channel 3 for electrolyzing the water to be treated to generate hydrogen; a UV unit 20 provided on a primary side of the magnetic unit 30 of the pipe channel 3 for irradiating the water to be treated with UV light; and a pump P provided on a primary side of the UV unit of the pipe channel 3.SELECTED DRAWING: Figure 4【課題】水素が高濃度に溶存した水素水を製造可能な水素水製造装置及び水素水製造方法を提供すること。【解決手段】被処理水を供給する被処理水供給ユニット10と、被処理水を排出する排出口2と、被処理水供給ユニット10と排出口2を接続する管路3と、管路3に介設され、ケース内に収納されたマグネシウム粒と被処理水を反応させて水素を発生させるMgユニット40と、Mgユニット40の一次側の管路3に介設され、被処理水に磁場を印加して磁気処理を行う磁気ユニット30と、Mgユニット40の二次側の管路3に介設され、被処理水を電気分解して水素を発生させる電気分解ユニット50と、磁気ユニット30の一次側の管路3に介設され、被処理水に紫外線を照射するUVユニット20と、UVユニットの一次側の管路3に介設されるポンプPと、を備える。【選択図】図4