Anisakiasis is an infection in gastrointestinal track caused by the third stage of larvae family, Anisakidae. The diagnosis is made by the striking feature of larva showing cuticle, well developed musculature beneath the hypodermis, and two large Y-shaped lateral chords extending into the body cavity as well as large esophagus at the center. After several cases of anisakiasis were reported in Netherland by Van Theil, it was recognized that similar infections were occurring in Japan and Korea, which is closely related with the habit of raw eating of marine fishes. We report a case of anisakiasis involving terminal ileum with brief review of literatures.