PROBLEM TO BE SOLVED: To provide an acidic o/w-type emulsion seasoning imparting, despite having a low mixing ratio of edible oils and fats, the richness of the oils and fats.SOLUTION: The provided acidic o/w-type emulsion seasoning is an acidic o/w-type emulsion seasoning of an ultra-low calorie type including: at least one type of sweetener selected from among sucrose, glucose, fructose, and maltose yolk a thickener and edible oils and fats in a state where the content of the edible oils and fats is 5% or above and 15% or below, the viscosity is 30 Pa s or above, the mass ratio of the yolk (raw equivalent) with respect to 1 part of the edible oils and fats is at least 0.2 part, and the content of stevia is 0.0005% or above and 0.03% or below.COPYRIGHT: (C)2015,JPO&INPIT【課題】食用油脂の配合量が少ないにもかかわらず、油脂のコク味が感じられる酸性水中油滴乳化調味料を提供する。【解決手段】ショ糖、ブドウ糖、果糖、麦芽糖から選ばれる少なくとも1種の甘味料と、卵黄、増粘剤及び食用油脂とを含有し、該食用油脂の含有量が5%以上15%以下である超低カロリータイプの酸性水中油型乳化調味料において、粘度が30Pa・s以上、食用油脂1部に対する卵黄(生換算)の質量比が0.2部以上、ステビアの含有量が0.0005%以上0.03%以下である、酸性水中油型乳化調味料。【選択図】なし