We report a case of arteriovenous malformation (AVM) restricted to the auricle fed by the external carotid artery. The patient showed severe hypertrophy of the left auricle, remarkably spreading throughout the auricle. At first, we chose to surgically ligate the superficial temporal artery. After the operation, however, pulsation recurred, and we ligated the external carotid artery at an inframandibular site in a second operation. Two months after surgery, plasty of the left auricle was performed at the patient's request.