PROBLEM TO BE SOLVED: To provide a collagen peptide-containing beverage prevented from white turbidity and/or precipitation caused in a beverage containing collagen peptide and a prescribed amount of chondroitin sulfate, hyaluronic acid and/or the like, and having pH 3.0-5.0.SOLUTION: The collagen peptide-containing beverage is obtained by adding at least one kind selected from among a group comprising γ-aminobutyric acid, L-theanine and betaine to a beverage containing 2-10 wt.% of the collagen peptide, and 0.001-0.1 wt.% of at least one kind selected from among the chondroitin sulfate, the hyaluronic acid and the salt thereof and having pH 3.0-5.0. This constitution can prevent white turbidity and/or precipitation from occurring.