Abdominal aortic aneurysm 6cm is more serious, must be closely monitored to prevent rupture of the tumor triggering serious consequences, 6cm has reached the surgical indications, must be timely surgical treatment. Usually, patients with abdominal aortic aneurysm with tumor diameter below 4cm should follow the doctor’s instruction to do dynamic follow-up, generally, ultrasound examination can be carried out once every 2 years, and the examination can be carried out once a year if there are conditions. If the diameter of the tumor is 4~5 cm, it should be closely monitored, and ultrasound examination should be performed at least once a year. If the tumor diameter is more than 5cm or the tumor is growing rapidly, it is considered to have reached the surgical indication and should be operated in time. 6cm has already reached the surgical indication, it is recommended to follow the doctor’s advice to choose the appropriate surgical plan and to operate as soon as possible. Patients with abdominal aortic aneurysm should pay attention to blood pressure control, prevention and treatment of constipation and chronic bronchitis, prevention and treatment of abdominal aortic aneurysm accidental rupture.