The present invention provides an antioxidative composition comprising a Platycodon grandiflorum seed extract as an active ingredient. The extract is an anti-inflammatory pharmaceutical composition which is extracted with at least one selected from a group comprising water, lower alcohol having 1 to 4 carbon atoms, acetone, ethyl acetate, butyl acetate and 1,3-butyleneglycol.본 발명은 도라지(Platycodongrandiflorum) 종자 추출물을 유효성분으로 포함하는 항산화 조성물을 제공한다.