PROBLEM TO BE SOLVED: To provide an aqueous manicure composition that is excellent in all of coating film strength after application, adhesion, and glossiness of a coating film.SOLUTION: An aqueous manicure composition comprises an acrylic resin emulsion that has a peak with a particle size distribution of 80 nm or less and also has a glass-transition temperature of 20-45°C, and 1,2-octane diol of 0.15-4.50 wt.%.SELECTED DRAWING: NoneCOPYRIGHT: (C)2016,JPO&INPIT【課題】塗布後の塗膜強度、付着性及び塗膜の光沢性が全て優れる水性美爪料組成物を得ること。【解決手段】粒子径分布が80nm以下においてピークを有し、かつガラス転移温度が20~45℃のアクリル樹脂系エマルジョンと、1,2-オクタンジオールを0.15~4.50重量%含有する水性美爪料組成物。【選択図】なし