Abstract: 【ABSTRACT】Objective: To analyze the application value of partial coverage of the left and the inferior clavicle in the lesions of the thoracic aorta.Methods:A retrospective analysis of 54 cases of anchor short thoracic aortic lesions in patients with clinical data,27 cases underwent partial covering the left subclavian artery technique in the treatment,27 cases of full coverage of the left subclavian artery technique in the treatment,compared two groups of patients with therapeutic effect and postoperative complications.Results:The anchor of the two groups of patients with fixed length,double upper limbs average systolic blood pressure,postoperative developing patent number is proportional to the difference has statistical significance(P＜0.05),internal leakage,stroke and perioperative death rate differences had no statistical significance(P＞0.05);14 cases of internal leakage disappeared,2 cases were reduced,1 case of internal leakage had no obvious change.12 complete coverage group of patients with mild upper limb numbness,fatigue and other symptoms,partial coverage group of patients did not have the above symptoms.Conclusion:For thoracic aortic stent graft implantation for the treatment of the anchor fixed short thoracic aortic disease patients,in order to ensure the anchor distance selection part covering the left subclavian artery in the treatment of safety more high,can effectively prevent the occurrence of acute cerebral infarction.