The present invention relates to a manufacturing method of Hijikia fusiforme Okamura extracts with improved anti-oxidant effect, anti-wrinkle effect and brightening effect, which manufactures Hijikia fusiforme Okamura extracts by the following steps of adding distilled water to Hijikia fusiforme Okamura powders and extracting the same at ultra-high pressure, a Hijikia fusiforme Okamura extracts with improved anti-oxidant effect, anti-wrinkle effect and brightening effect manufactured by the method and a cosmetic composition for preventing wrinkles and brightening skins including the Hijikia fusiforme Okamura extracts as an active ingredient.본 발명은 톳 분말에 증류수를 첨가한 후 초고압 추출하여 제조하는 것을 특징으로 하는 항산화, 항주름 및 미백 활성이 증진된 톳 추출물의 제조방법, 상기 방법으로 제조된 항산화, 항주름 및 미백 활성이 증진된 톳 추출물 및 상기 톳 추출물을 유효성분으로 함유하는 항주름 및 미백용 화장료 조성물에 관한 것이다.