OBJECTIVE: To explore the value of further refining the typing according to the site and degree of aortic coarctation on the basis of Stanford typing to guide clinical selection of the timing of surgery, determination of treatment plan and surgical modality, and judgment of prognosis. Methods: From January 1994 to December 2004, 708 cases of aortic coarctation were treated in our hospital, including 477 cases of Stanford type A coarctation: (1) 3 types according to the degree of aortic root lesion. 212 cases of type A1 (normal aortic sinus) were treated with aortic replacement preserving the aortic sinus; 72 cases of type A2 (mild aortic sinus involvement) were treated with aortic sinus Type A3 (severe aortic sinus involvement) was performed in 193 cases, and aortic root replacement (Bentall procedure) was performed. (2) There were 2 types of aortic arch lesions. 78 cases of type C (complex type) underwent aortic arch replacement + elephant trunk surgery; 399 cases of type S (simple type) underwent partial aortic arch replacement. 231 cases of Stanford type B coarctation: (1) There were 3 types of aortic coarctation according to the extent of aortic dilatation. type B1: no dilatation or only proximal dilatation of the descending aorta, 147 cases underwent endoluminal stenting with membrane. Type B1: no dilatation or only proximal dilatation of the descending aorta. Thoracoabdominal aortic replacement was performed in 31 cases. (2) According to whether the left subclavian artery and the distal aortic arch were involved by the entrapment or not, there were 2 types of cases: Type C (complex type): the entrapment involved the left subclavian artery or the distal aortic arch, 44 cases were treated surgically under deep hypothermic stopping circulation; Type S (simple type): the distal aortic arch and the left subclavian artery were not involved by the entrapment, 187 cases, 103 cases were treated by intervention, 84 cases were treated surgically (60 cases were treated under normothermia), and the femoral artery was treated by surgery. There were 103 interventional cases and 84 surgical cases (60 cases under normal temperature blockage and 24 cases under femoral artery and 2 femoral vein diversion). Results: The hospital mortality rate was 4.6% (22/477) and the complication rate was 14.5% (69/477) for Stanford type A. For Stanford type B: the mortality rate was 1.9% (2/103), the complication rate was 2.9% (3/103), and the incidence of mild endoleaks was 9.7% (10/103) for the interventional group, and the hospital mortality rate was 3.1 (4/128) and the complication rate was 18.8% (24/128) for the surgical group. The complication rate was 18.8 % (24 /128). Conclusion: Refinement of the staging of aortic coarctation is an important guide for preoperative determination of the timing of surgery, formulation of surgical plan and preliminary prognosis.