PROBLEM TO BE SOLVED: To provide oil in water type sunscreen cosmetics that have excellent feeling of use, such as no stickiness and a moist feel, with emulsification stability, while having an excellent ultraviolet light-shielding function.SOLUTION: The invention provides an oil in water type sunscreen cosmetic containing components (A)-(D): (A) water soluble copolymer having, as an essential constitutional unit, one or more constitutional units (a) induced from a particular hydrophobic monomer, and one or more constitutional units (b) induced from a hydrophilic monomer； (B) polyglycerol fatty acid ester obtained by ester condensation of one molecule of polyglycerols with a degree of polymerization of 10 and 2-5 fatty acid molecules having 16 or more carbon atoms； (C) an ionic surfactant； and (D) an ultraviolet scattering agent and/or an ultraviolet absorber.SELECTED DRAWING: None【課題】良好な紫外線防御機能を有しながらも、べたつき感の無さや保湿感などの使用感に優れ、乳化安定性のある水中油型の日焼け止め化粧料を提供することを課題とする。【解決手段】成分（Ａ）～（Ｄ）を含む、水中油型の日焼け止め化粧料。（Ａ）特定の疎水性モノマーから誘導される１種又は２種以上の構成単位（ａ）と、親水性モノマーから誘導される１種又は２種以上の構成単位（ｂ）を必須構成単位として有する水溶性コポリマー（Ｂ）重合度が１０のポリグリセリン１分子と、炭素数１６以上の脂肪酸２～５分子がエステル縮合してなるポリグリセリン脂肪酸エステル（Ｃ）イオン性界面活性剤（Ｄ）紫外線散乱剤及び／又は紫外線吸収剤【選択図】無し
