Abstract： Objective To analysis of therapeutic effect of endobronchial tuberculosis for chronic cough by bronchoscopy.Methods 36 inpatients with endobronchial tuberculosis were treated with drug-infusing therapy.All cases were exiamed by bronchoscopy before and after treatment.Results After 9 months of treatmemt,the clinical manifestation,the sputum negative conversion rate and the pulmonary atelectasis cure rate were 100%.The improvement rate by X-ray was 85.7% and 75.0% by bronchoscopy.Conclusion To analysis of therapeutic effect of endobronchial tuberculosis by bronchoscopy is an effective method,and it has many merits,such as safe,low complication,easy to accept.