Abstract: Objective To explore the tuberculosis prevalance about the Hani nationality poputation of Yunnan province.Methods To conduct The PPD test and examine the BCG inocualation ecar on the children from aged 3months to 15 years old.To take the chest X-ray film on those with strongly prositive reaction of PPD test.The sputum examination for acid fast bacillus were performed for all cases who had the suspect tuberculosis symptoms.Results 23 cases with active tuberculosis were found in this investigation. The detect rate was 5.7%. 3 cases were smear positive and the prevalence of smear positive was 746.27/105.25 cases were foune to be strongly positive reaction of PPD test,it’s rate showed 14%.Conclusion The state of tuberculosis prevalence in Honghe prefecture,Yunnan province in very critical.

Key words: Tuberculosis,pulmonary/epidemiology, Yunnan province