PROBLEM TO BE SOLVED: To provide a hypochlorous acid aqueous solution in which a pungent odor is reduced and the inactivation of hypochlorous acid water is inhibited, and a material impregnated with hypochlorous acid water.SOLUTION: A hypochlorous acid aqueous solution according to an embodiment comprises a microcapsule comprising a flavor as a core material, and hypochlorous acid water, and is 3.0 or more and 7.0 or less in pH and 1 mg/kg or more in hypochlorous acid concentration.SELECTED DRAWING: Figure 1【課題】刺激臭が緩和され、かつ次亜塩素酸水の失活が抑制された次亜塩素酸水溶液、及び次亜塩素酸水含浸物を得る。【解決手段】実施形態にかかる次亜塩素酸水溶液は、芯物質として香料を含有するマイクロカプセル、及び次亜塩素酸水を含有し、かつ3.0以上7.0以下のpH値、及び1mg/kg以上の次亜塩素酸濃度を有する。【選択図】図1