Objective To study how to improve the safety of the operation for abdominal aneurysm. Methods In 36 patients with abdominal aneurysm, 35 received resection of abdominal aneurysm plus artificial blood vessel transplantation, 1 received intracavitary repair. Results In these 36 cases, 35 were cured and 1 died. No complications occurred. Conclusion The reform of the techniques of the controlling of blood flow near aneurysm, the suture and repair, and intracavitary impair reduces the risk of operation.