A method for producing a fucoxanthin-containing composition, comprising adding a water-soluble solvent containing 0 to 80% by weight of water to seaweed to obtain a seaweed component extract, wherein the concentration of the water-soluble solvent is in the seaweed component extract Adding water and / or a water-soluble solvent so as to be 20 to 45% by weight, and also adding an excipient together to obtain an excipient-containing extract, and the excipient-containing extract And a second step of collecting the substance aggregated in the excipient-containing extract after separation as a fucoxanthin-containing composition by separation.フコキサンチン含有組成物の製造方法であって、海藻類に、水を０～８０重量％含有する水溶性溶媒を加えて海藻成分抽出液を得、該海藻成分抽出液中に水溶性溶媒濃度が２０～４５重量％となるように水及び／又は水溶性溶媒を添加し、併せて賦形剤も添加して賦形剤含有抽出液を得る第１工程と、前記賦形剤含有抽出液を攪拌した後、該賦形剤含有抽出液中に凝集した物質を分離によりフコキサンチン含有組成物として回収する第２工程とを含む。
