Disclosed is an oil-in-water emulsified sunscreen cosmetic material exhibiting enhanced ultraviolet-shielding effect with highly mixed UV absorbent, and being excellent in applicability with good adaptability and also excellent in emulsion stability. This oil-in-water emulsified sunscreen cosmetic material contains (A) 1-7.5 % by mass of octyl methoxycinnamate, (B) 0.5-4% by mass of t-butylmethoxydibenzoylmethane and/or 2-hydroxy-4-methoxybenzophenone, (C) 0.5-3% by mass of polyoxyethylene/ polyoxyalkylene alkyl ether block polymer having specific structure, and (D) 10% or more by mass, relative to the total oil amount, of a nonpolar oil, and the average diameter of the emulsified particle is 700nm or less.本發明之目的係提供一種水中油型乳化防曬化妝料，其係高度調配紫外線吸收劑而使紫外線防禦力提升，同時乳化安定性優異且使用性亦佳者。本發明所提供之水中油型防曬化妝料，其特徵係含有：(A)1至7.5質量%之甲氧基肉桂酸辛酯、(B)0.5至4質量%之第三丁基甲氧基二苯甲醯甲烷及/或2-羥基-4-甲氧基二苯基酮、(C)0.5至3質量%之特定構造的聚氧伸乙基/聚氧伸烷基烷基醚嵌段聚合物、以及(D)相對於總油分量為10質量%以上之非極性油，且平均乳化粒徑為700nm以下者。
