An abdominal aortic aneurysm is defined as an aneurysmal dilatation of the abdominal aorta, usually increasing in diameter by 50% or more. Abdominal aortic aneurysms are more common in older men, with a male to female ratio of 10:3, especially in smokers, and smoking also significantly increases the risk of aneurysm rupture. The vast majority of abdominal aortic aneurysms are lesions below the level of the renal arteries. The main cause of abdominal aortic aneurysms is atherosclerosis, and in order to prevent this disease, it is important to start by preventing atherosclerosis; limiting the intake of animal fats and limiting the intake of high cholesterol foods. Common risk factors for abdominal aortic aneurysm include: smoking, high blood pressure, advanced age, and male. We are the first in China to propose the concept of “endovascular surgery” and carry out a series of endovascular surgeries represented by angioscopic surgery, endoluminal isolation of abdominal aortic aneurysm and endoluminal isolation of thoracic main coarctation aneurysm, which made pioneering contributions to the start and vigorous development of endovascular surgery in China. Abdominal aortic aneurysm is not a malignant tumor, but a hemangioma in the abdominal aorta. The common causes are atherosclerosis, smoking, alcohol consumption and hypertension, so it rarely occurs in young people. If the disease is not operated, the abdominal aortic aneurysm is likely to rupture in the future, which can be life-threatening, so it needs to be treated as soon as possible.