The present invention relates to a method for preparing a cosmetic composition comprising a marine extract for relieving itchiness due to skin dryness. The method comprises the steps of: (a) preparing an Ecklonia cava extract, a Sargassum fusiforme extract, a kelp extract, a Pyropia yezoensis extract and a brown algae extract, which are processed； (b) mixing 50-55 parts by weight of the Sargassum fusiforme extract, 50-70 parts by weight of the kelp extract, 5-8 parts by weight of the Pyropia yezoensis extract, and 5-10 parts by weight of the brown algae extract, with regard to 100 parts by weight of the Ecklonia cava extract, and stirring the resulting mixture for 10-12 hours； and (c) further adding 3-50 parts by weight of fucose into the resulting stirred mixture with regard to 100 parts by weight of the Ecklonia cava extract and stirring the resulting mixture for 10-12 hours, thereby providing an effect of mass-producing the cosmetic composition for relieving itchiness caused by skin dryness by using marine-derived natural ingredients.COPYRIGHT KIPO 2020본 발명은 피부건조에 의한 가려움 완화용 해양추출 화장료 조성물 제조방법에 관한 것으로, (a) 가공된 감태추출물, 톳추출물, 다시마추출물, 방사무늬돌김추출물 및 갈조추출물을 준비하는 단계와； (b) 감태추출물 100 중량부에 대하여, 톳추출물 50 ~ 55 중량부, 다시마추출물 50 ~ 70 중량부, 방사무늬돌김추출물 5 ~ 8 중량부 및 갈조추출물 5 ~ 10 중량부를 혼합하여 10 ~ 12시간 교반하는 단계와； (c) 감태추출물 100 중량부에 대하여 푸코오스 3 ~ 50 중량부를 더 첨가한 후 10 ~ 12시간 교반하여 제조하는 단계로 구성됨으로써, 해양 유래에 천연 재료를 이용하여 피부 건조에 의해 유발되는 가려움을 완화할 수 있는 화장료 조성물을 대량 생산할 수 있는 효과가 있다.
