An object of the present invention can be dissolved in oils and fats without cloudiness or precipitation catechins insoluble in fats and oils, to obtain an excellent anti-oxidant composition to further anti-oxidant effect. The A catechins 0.1-30 parts by weight was dissolved in 70 to 99.9 parts by weight of diglycerol fatty acid ester to obtain the antioxidant composition.BACKGROUND【課題】油脂に不溶のカテキン類を白濁や沈殿することなく油脂に溶解でき、さらに抗酸化効果に優れた抗酸化剤組成物を得る。【解決手段】カテキン類0.1~30重量部をジグリセリン脂肪酸エステル70~99.9重量部に溶解して抗酸化剤組成物を得る。【選択図】なし