Eosinophilic enteritis is characterized by massive infiltration of eosinophil throughout the entire or each layer of intestinal wall with marked submucosal edema. The etiology of this disease is not clear until now, and parasite infestation should be considered as a cause of eosinophilic enteritis like this case. We experienced a case of eosinophilic enteritis manifested by intermittent periumbilical pain and bloody ascites. After partial resection of ileum, we confirmed the eosinophilic abscess from Anisakis infestation and successfully treated this patient without sequalae and report it with literatures review. (Korean J Gastrointest Endosc 2002; 25:457460)