A method for producing fermented milk which can produce fermented milk of high concentration with excellent flavor and texture inexpensively is provided. A method for producing a fermented milk containing a high concentration of protein, comprising the steps of: using raw milk containing skim milk powder, whey protein concentrate and milk protein concentrate to mix the protein contained in skimmed milk powder with a whey protein concentrate Of the protein contained in the milk protein concentrate is 20 to 60% by mass, the protein contained in the whey protein concentrate is 20 to 30% by mass, and the protein contained in the whey protein concentrate is 20 to 30% Skim milk powder, whey protein concentrate, and milk protein concentrate are compounded so that the protein content in the milk protein concentrate is 20 to 60% by mass.風味および食感に優れた高濃度の発酵乳を安価に製造できる、発酵乳の製造方法を提供する。タンパク質を高濃度で含む発酵乳の製造方法であって、脱脂粉乳と、ホエイタンパク質濃縮物と、乳タンパク質濃縮物とを含む原料乳を用いて、脱脂粉乳に含まれるタンパク質と、ホエイタンパク質濃縮物に含まれるタンパク質と、乳タンパク質濃縮物に含まれるタンパク質の合計を100質量%としたときに、脱脂粉乳に含まれるタンパク質が20~60質量%、ホエイタンパク質濃縮物に含まれるタンパク質が20~30質量%、乳タンパク質濃縮物に含まれるタンパク質が20~60質量%となるように、脱脂粉乳と、ホエイタンパク質濃縮物と、乳タンパク質濃縮物とを配合する。
