Silicone composite particles are provided in which silicone elastomer spherical particles having a volume average particle size of 0.1-100 µm are coated with an organosilsesquioxane-based silicone resin containing inorganic nano-particles having a volume average particle size of up to 100 nm. The silicone composite particles are compounded in a cosmetic composition to exert a UV screening effect or bactericidal property inherent to inorganic nano-particles and to impart a pleasant feel on use. A preparing method and a cosmetic composition are also provided.本發明係提供一種添加於化妝料時,可發揮紫外線遮蔽性或殺菌性等無機微粒子的特性之同時,亦可滿足良好使用感之聚矽氧複合粒子及其製造方法、以及含有該聚矽氧複合粒子之化妝料。該聚矽氧複合粒子的特徵為於體積平均粒徑為0.1~100μm之聚矽氧彈性體球狀粒子100質量份上包覆將有機矽倍半氧烷單位作為主成分之聚矽氧樹脂0.5~25質量份而成,上述聚矽氧樹脂中含有體積平均粒徑為100nm以下之無機微粒子。
