Between October 1988 and October 1993, we experienced 15 cases of free arterial grafting for coronary artery bypass (11 men, 4 women: age range from 42 to 75 years). The bypass grafts were used 11 right internal thoracic artery (RITA), 4 right gastroepiploic artery (RGEA), and 1 left internal thoracic artery (LITA). There were no surgical complications by using free arterial graft. The patency rate at one month after operation was good (86.7%, 13/15 anastomoses). Sites of proximal anastomosis were ascending aorta in all patient. These results indicated that free arterial graft is usefull for multiple coronary artery bypass by arterial graft.