The crude lipid contents of dried sea food products varied remarkably from 1.2 to 29.9% for dried fish products, from 2.8 to 12.3％ for dried mollusk ones, and from 0.1 to 2.3％ for dried seaweed ones. In fatty acid composition of dried fish products, the saturated acid was the most predominant component for dried anchovies, hair tail, Kstsuobushi, the monoenoic acid was the most predominant one for dried yellow corvenia, flat head, common carp, sea eel and conger eel. And the polyenoic acid was the most abundant one for dried cod. Allaska pollack, flounder, sole fish, ray, smelt and sardine. The major fatty acids of these dried fish products were 16:0, 16:1, 18:0, 18:1, 20:5 and 22:6. Fatty acid composition of dried mollusk products were mainly consisted of polyenoic acid, and followed by saturated acid, monoenoic aced. The major fatty acids of these products were similiar to those of dried fish products. And in case of dried seaweed products, saturated acid such as 14:0, 16:0 was the most predominant component, while polyenoic acid was abundant one in dried laver and sea mustard. The main fatty acids of dried seaweed products were 14:0, 16:0, 18:1, 20:1, 20:4, and 20:5. Judging from the results, dried sea food products were abundant of the highly unsaturated fatty acids in spite of the drying processing and storage.