A 57-year-old man with acute dissecting aneurysm of the ascending aorta underwent immediate operation. Preoperative study showed aortic regurgitation and cardiac tamponade. The intimal tear originated just above commissure of right coronary cusp and left coronary cusp. The procedure was a combination of direct closure of the entry and dissecting space and resuspension of native aortic valve. It was preferential of simple intervention limited to the ascending aorta without using prosthesis. There was no complication such as aortic valve regurgitation, enlargement of the ascending aorta, or persistent of dissection during follow-up period of 12 months.