An edible oils and fats are liquid at 10 ℃, emulsifiers preparation in edible oils and fats and is held in 5 ℃ ~35 ℃, to prepare an emulsifier preparation by adding and mixing the emulsifier 50 ℃ ~120 ℃, resulting comprising adding to the edible oil at 5~35 ℃ liquid, industrial process for the production of more than 80kg emulsifier-containing edible fat composition. According to this manufacturing method, the flavor of edible fats and oils with little deterioration, can be produced on an industrial scale emulsifier containing edible oil and fat composition of the dissolved state and uniformly dispersed / or edible oils and fats of liquid emulsifier.10℃で液状である食用油脂であって、5℃~35℃に保持されている食用油脂に、50℃~120℃の乳化剤を添加混合して乳化剤調製液を調製し、得られた乳化剤調製液を5~35℃で食用油脂に添加することを含む、乳化剤含有食用油脂組成物の80kg以上の工業的製造方法。この製造方法によると、食用油脂の風味が劣化少なく、乳化剤が液状の食用油脂に均一に分散及び/又は溶解した状態の乳化剤含有食用油脂組成物を工業的に製造できる。