Fuente: WIPO "dairy products" The invention relates to the technical field of dairy products, in particular to liquid milk for children and a sterilization and preparation method thereof. When the liquid milk for children is prepared, the pressure of the dynamic ultrahigh-pressure microjet is 150-200MPa, the holding time is 12-15s, an emulsifier used in the liquid milk for children comprises mono-and diglycerol fatty acid ester, polyglycerol fatty acid ester and propylene glycol fatty acid ester, and the emulsifier accounts for 0.06-0.12% of the liquid milk for children by mass. The liquid milk obtained by adopting the compound emulsifier and the microjet treatment condition provided by the invention is uniform in color and luster; the tissue state is a uniform fluid, and the phenomena of precipitation, clots, impurities, viscosity and thickness are avoided; the beverage has the fragrance of cow milk, is delicious and sweet in taste, and does not have any other abnormal taste.