Traumatic hepatic artery/hepatic vein fistula was experienced in a 3 year-old boy. This hepatic arteriovenous fistula was diagnosed by a selective angiography of the hepatic artery. To prevent heart failure and pulmonary embolism developing, hepatic artery ligation was carried out. The postoperative course was uneventful and the patient was discharged without any sequelae. This paper summarizes our experience of a case with traumatic hepatic arteriovenous fistula and the treatment of hepatic artery ligation is discussed.