The present invention relates to a method for producing a frozen food and a frozen food produced by the process. There are provided a method for producing a frozen food characterized by subjecting a food to a contact treatment with an emulsifier-added fat or oil and thereafter freezing the food a frozen food produced by the method and a method of preventing fluctuation in a water content of a frozen food, characterized by subjecting a food to a contact treatment with an emulsifier-added fat or oil and thereafter freezing the food.