An object of the present invention is to provide a fermented milk food, in which the viability of lactic acid bacteria during storage is high, the increase in acidity is suppressed, the viable cell count is less reduced, and the flavor is less deteriorated. A method for producing a fermented milk food by which the object was achieved is characterized by inoculating and culturing lactic acid bacteria in a culture medium containing a milk as a main component and supplemented with glucose in such an amount that glucose is substantially entirely assimilated at the time of completion of culturing and fructose in an amount twice or more the amount of glucose in a mass ratio.