The present invention addresses the problem of providing a premix for preparing an emulsion composition, which makes it possible to easily prepare a food containing a highly unsaturated fatty acid such as DHA or EPA, and an emulsion composition using the same. A premix for preparing an emulsion composition, which makes it possible to easily prepare a food containing a highly unsaturated fatty acid such as DHA or EPA, can be obtained by mixing a highly unsaturated fatty acid-containing fat or oil with a specific fat or oil and then mixing the resultant mixture with a preset amount of an aqueous solvent to thereby give an oil-in-water type emulsion. By using this premix, foods or drinks, for example, a drink in which an offensive taste derived from a highly unsaturated fatty acid is reduced can be easily prepared.本發明的課題在於提供一種可容易地製備含有DHA或EPA等高度不飽和脂肪酸的食品的乳化組成物製備用預混合物及使用其的乳化組成物。將含高度不飽和脂肪酸的油脂與規定的油脂混合後與一定量的水系溶媒混合而製成水包油型乳化物，藉此可製成能容易地製備含有DHA或EPA等高度不飽和脂肪酸的食品的乳化組成物製備用預混合物。藉由使用本預混合物，可容易地製備源於高度不飽和脂肪酸的異味得以抑制的飲料等食品。
