PROBLEM TO BE SOLVED: To mask the sourness of sourness material-containing beverage and improve its flavor.SOLUTION: The present invention provides an agent for masking the sourness of sourness material-containing beverage, the agent predominantly composed of hyaluronic acid, a method for masking the sourness of sourness material-containing beverage, the method including making the sourness material-containing beverage contain hyaluronic acid, and sourness material-containing beverage containing hyaluronic acid and a method for producing the same.SELECTED DRAWING: NoneCOPYRIGHT: (C)2016,JPO&INPIT【課題】酸味物質含有飲料において、酸味をマスキングし、香味改善を行う。【解決手段】ヒアルロン酸を主成分とする酸味物質含有飲料の酸味マスキング剤、ヒアルロン酸を含有させる酸味物質含有飲料における酸味をマスキングする方法、ヒアルロン酸を含有する酸味物質含有飲料およびその製造方法が提供される。【選択図】なし