 Aortic dissection AD aneurysm is a common catastrophic aortic disease in clinical setting. In the U.S., the prevalence is approximate 2.9-3.5 cases100000 persons per year, with recent evidence showing an increasing incidence of up to 14 cases per 100000 patients per year. AD aneurysm can be classified into the types of Stanford A and B based on whether the ascending aorta was being involved. For acute type B aortic dissection ABAD, which is generally accounted for one thirds of all aortic dissection and is especially more common among Chinese due to the suboptimal control of blood pressure. Optimal treatment of ABAD from symptom onset remains uncertain. Conservative therapy of heart rate and blood pressure control in the acute phase is the essential treatment for patient without serious complications such as concurrent mesenteric artery or lower limb arterial embolism. The long-term survival of ABAD is still low though great improved in medication optimization and surgical repair technique in the past decades. It was reported that 5-year and 10-year survival rates for ABAD were 60 and 35 respectively. As the development of minimally invasive techniques in recent years, the endovascular repair procedure has become a routine procedure in the treatment of patient with ABAD, this rendered an improved prognosis with a 5-year survival rate close to 80. 