Outbreak patterns were observed in 250 chickens of necrotic enteriris(0.3%) among 81,000, 90 enterotoxemic pigs(9.5%) among 950, and 9 enterotoxemic cattle(13.8%) among 65 in a farms of Gyeonggi, Chungnam, Kwangwon, and Chonnam area from 1993 to 1996. Clostridium perfringens was isolated from 36 strains(14.4%) among 250 chickens of necrotic enteritis, 21 strains(23.3%) among 90 enterotoxemic pigs, and 3 strains(33.3%) among 9 enterotoxemic cattle. Toxin types by the neutralization test were categorized as A-type in 36 strains(100.0%) among 36 chickens of necrotic enteritis, and as A-type in 17 strains(81.0%), as B-type in 2 strains(9.5%) and as C-type in 2 strains(9. 5%) among 21 enterotoxemic pigs, and also 3 strains(100.0%) among 3 enterotoxemic cattle.