In the present study 90(58 males and 32 females) HIV infected tuberculosis patients were studied. Fibro optic bronchoscopy was used to study the pulmonary tuberculosis. Branchoalveolor clevage (BAL) and trans-bronchial biopsy (TBB) was performed In Zn stain study 58(64.4%) positive and in TB culture test 32(35.5%) positivity was observed. Bronchoscopic study with Zn test was done. Test positive with TB was 8(8.8%) additional test positive with TB was 6(6.6%). Sensitivity test was 16(17.7%), incremental sensitivity test was 9 (10%) specificity tests was 18(22.2%), PPV was 20(22.2%), and NPV was 13(14.4%). These obtained values were more significant and higher than value of non-bronchoscopic studies. Moreover this present bronchoscopy study was quite helpful for early diagnose and early to treat the patients of HIV infected pulmonary tuberculosis patients, so that lifespan of HIV infected patients can be prolonged.