A powder cosmetic composition having satisfactory usability, cosmetic durability, adhesion properties to the skin, slip properties and smoothness comprising, as powder components (a) and (b): (a) a branched alkyl silicone-treated powder and (b) a composite silicone elastomer powder coated on all or part of the powder surface with at least one coating selected from the group consisting of clay minerals, resins, metal oxides and salts, in particular including 3 to 80 mass % of the component (a) and 1 to 30 mass % of the component (b).