Abstract: Objective To explore the clinical features and treatment of diabetes combined with pulmonary tuberculosis.Methods Seventy cases of diabetes complicated with pulmonary tuberculosis admitted from December 2009 to December 2011 were analyzed retrospectively.Results The condition of patients of diabetes complicated with TB was often complex and serious,60 cases were acute onset with symptoms of cough,expectoration and fever,which accounted for 85.7%. Thirty cases had the symptom of hemoptysis(42.9%),40 cases(57.1%)were weight loss. The positive rate of smear culture was 74.3%(52/70),and the lesions were more wide and mainly caseous lesion-based with cavity. Forty-eight cases(68.6%)had the overall lesions covered more than 2 intercostal space,and 40 cases(57.1%)had cavity.Conclusion Diabetes and tuberculosis are interacted and caused by. Anti-tuberculosis treatment should be conducted based on the effective control of blood glucose in order to obtain a better effect.