The present invention provides an oil-in-water emulsion composition being excellent in UV shielding ability, preparation stability and feeling in use, coordinated with an oil organic UV absorbent such as Octocrylene, etc., and a solid organic UV absorbent. The composition of this invention is an oil-in-water emulsion composition containing the following ingredients of (a) to (c), and the average particle diameter of the oil phase containing the ingredient of (a) is 700 nm or less: (a) an Octocrylene (a1)-containing organic UV absorbent being oil-like at 20 DEG C； (b) an organic UV absorbent as a solid at 20 DEG C, selected from (b1) bis-ethylhexyloxyphenol methoxyphenyl triazine and (b2) methylene bis-benzotriazolyl tetramethyl butyl phenol； (c) the polyoxyethylene. polyoxyalkylene alkyl ether block polymer of formula (1) or (2): R1O-(PO)m-(EO)n-H (1) [R1 is a hydrocarbon group with C16-18； PO is a oxypropylene group； EO is an oxyethylene group； PO and EO are adducted to form block shape, m and n respectively represents the average adduction moles of PO and EO, 70 >； m >； 4, 70 >； n >； 10, n >； m] R2O-(AO) p-(EO) q-R3 (2) [R2 and R3 are the same or different, respectively represents a C1-4 hydrocarbon group； AO represents a C1-4 oxyalkylene group； EO represents an oxyethylene group； AO and EO are adducted to form block shape； p and q respectively represents the average adduction moles of AO and EO, 1 &le； p &le； 70, 1 &le； q &le； 70, 0.2 <； (q/(p+q)) <； 0.8.]本發明提供一種O/W乳化組成物，係配合奧克立林(Octocrylene)等之油狀有機紫外線吸收劑與固體有機紫外線吸收劑，而使紫外線防禦能力、製劑安定性以及使用感優異者。本發明之組成物係包含下述成分(a)至(c)，且含有成分(a)之油相的平均粒徑在700nm以下，其中，；(a)含有(a1)奧克立林，20℃下為油狀之有機紫外線吸收劑；；(b)選自(b1)雙-乙基己氧基酚甲氧基苯基三、以及(b2)亞甲基雙-苯並三唑基四甲基丁基酚，20℃下為固體之有機紫外線吸收劑；；(c)下述通式(1)或(2)所示之聚氧伸乙基‧聚氧伸烷基烷基醚塊狀聚合物，；R1O-(PO)m-(EO)n-H (1)；[R1係碳數16至18之烴基；PO係氧伸丙基、EO係氧伸乙基，PO與EO加成為塊狀；m、n分別為PO、EO之平均加成莫耳數，且70>；m>；4，70>；n>；10，n>；m]；R2O-(AO)p-(EO)q-R3 (2)；[R2、R3可相同或不同，分別為碳數1至4之烴基；AO係碳數3至4之氧伸烷基、EO係氧伸乙基，AO與EO加成為塊狀；p、q分別為AO、EO之平均加成莫耳數，1≦p≦70、1≦q≦
