The incidence of abdominal aortic aneurysm (AAA) is gradually increasing. 50 cases of AAA were admitted to our hospital in 7 months from September 2004 to April 2005, of which 17 cases were treated by elective surgery, 7 cases by intracavitary aortic isolation, and 6 cases by emergency surgery, with a rupture rate of 12% and a mortality rate of 0 for elective surgery and 3 cases (50%) for emergency surgery. Aneurysm resection artificial vessel grafting is basically used at home and abroad. The mortality rate of elective surgery is 5.2-6.3% and the mortality rate of emergency surgery is 50-80% in foreign developed countries, while it is 7-9% and 50-73% in China, respectively. The above data show a significant difference in mortality rates between elective and emergency surgery for AAA, and therefore there is a need to enhance census surveillance of AAA to reduce the risk of AAA rupture. The authors concluded that the following measures should be taken: 1. According to the latest guidelines of The U.S. Preventive Services Task Force (USPSTF) in January 2005, it is believed that an ultrasound screening should be performed in male smokers aged 65-75 years with a sensitivity rate of 95% and specificity of 100%. 2.Strengthen the monitoring of AAA of less than 4 cm in diameter. 3.Strengthen the training of emergency receiving physicians to shorten the diagnosis time for ruptured AAA cases. 4.Master the indications for AAA surgery. 5.Improve surgical and anesthesia techniques to improve the success rate of surgery for ruptured AAA. 6.Strengthen postoperative monitoring to reduce the occurrence of complications.