PURPOSE: A cosmetic composition containing Sorbaria sorbifolia var. stellipila extract is provided to suppress melanogenesis and to ensure skin whitening. CONSTITUTION: A cosmetic composition for skin whitening contains 0.001-30.0 weight% of Sorbaria sorbifolia var. stellipila extract. The Sorbaria sorbifolia var. stellipila extract is isolated using purified water, alcohol of 1-6 carbon atoms, glycerine, alkylene glycol of 2-6 carbon atoms, alkan of 1-6 carbon atoms, halogenated hydrocarbon of 1-6 carbon atoms, or mixture thereof. The cosmetic composition is manufactured in the form of lotion, gel, soluble liquid, cream, essence, oil-in-water or water-in-oil type emulsion, or ointment.본 발명은 쉬땅나무(Sorbaria sorbifolia var. stellipila) 추출물을 포함하는 피부미백용 화장료 조성물에 관한 것이다.본 발명에 의하면 쉬땅나무(Sorbaria sorbifolia var. stellipila) 추출물은 멜라닌 생성억제 활성 및 피부 미백작용을 동시에 가지고 있으므로, 쉬땅나무 추출물은 각종 기능성 화장료로서 유용하다.