Provided is an easy-to-drink beverage that makes one perceive a characteristic flavor of flavorful acidic citrus fruits and in which an acid taste unique to flavorful acidic citrus fruit juice is moderately reduced. In the flavorful acidic citrus fruit juice-containing beverage having a fruit juice content of not less than 1% and not more than 30%, the ratio of the amount of narirutin to the total amount of naringin, hesperidin, eriocitrin, narirutin, neohesperidin, and rutin is adjusted to be in the range of 0.06 to 0.14.