To provide: a sweetener foreign taste improving agent containing an active ingredient that exhibits an improving effect on the foreign taste derived from a sweetener； a food product that contains a sweetener foreign taste improving agent； and a method for improving the foreign taste of a sweetener in a food or drink product.SOLUTION: Provided are: a sweetener foreign taste improving agent containing a rose extract and cyclodextrin as an active ingredient； said foreign taste improving agent for a high-intensity sweetener or artificial sweetener； a food product comprising said sweetener foreign taste improving agent； and a method for improving the foreign taste of a sweeteners by blending, spraying, or applying said sweetener foreign taste improving agent to a food or drink product.SELECTED DRAWING: Figure 1【課題】甘味料に由来する異味に対して改善効果を示す有効成分を含有する甘味料用異味改善剤、甘味料用異味改善剤を含有する食品、食品又は飲料における甘味料の異味改善方法の提供。【解決手段】バラ抽出物及びシクロデキストリンを有効成分として含有する甘味料用異味改善剤。高甘味度甘味料用又は人工甘味料用の該異味改善剤。該甘味料用異味改善剤を含む食品。該甘味料用異味改善剤を食品又は飲料に配合、噴霧、又は塗布することによる、甘味料の異味改善方法。【選択図】図１
