Infected aneurysm occurs in 3 to 15% of infective endocarditis patients. Most commonly it involves cerebral arteries and others involve the great arteries and coronary artery. Infected aneurysms of peripheral arteries are rare and most associated with intravenous drug abuse. We describe a rare Korean case of infective endocarditis with infected aneurysm of the brachial artery, which was treated successfully with surgical management.