Various surgical techniques have been described to repair congenital supravalvular aortic stenosis, but the best technique is still controversial. The three-patch repair reconstructs a symmetric aortic root and is supposed to restore a normal physiology. We present two successfully operated patients who had congenital supravalvular aortic stenosis using symmetric three-patch repair. We will discuss the decision making of surgical techniques, and its effects of postoperative course of this pathology in this case report.