It was suggested a new method for forming of the proximal part of vascular prosthesis for reconstructive surgery of the aortic root in patients with aneurysm and dissection of the ascending aorta. The proposed method has been applied in 33 patients (27 men, 6 women, mean age 49±17 years) during surgery of the aortic valve reimplantation. It was shown that application of this modification completely recreates aortic root analogue closed to natural. Also fibrous ring of the aortic valve is stabilized to prevent dilation in the long-term period, bleeding risk from the anastomosis area is minimizing. The method is simple and reproducible with any type of vascular prosthesis.