Abstract: Objective To explore the cooperation models in different regions and their effects on TB/HIV case finding. Methods Six counties of 4 provinces including Henan,Yunnan,Sichuan and Guangxi were selected to investigate the distribution and function of TB and HIV related institutions.2135 of 2396 new registered TB patients in 6 counties from Sep.2006 to Feb.2007 were tested for HIV infection,68 cases were detected HIV positive,and 3879 cases of HIV/AIDS were administered face-to-face TB questionnaires,1751 cases were detected as positive questionnaire and among them,250 cases were TB patients.Through the two-way screening,318 cases were detected as TB/HIV cases. Results There were two patterns of cooperation model in these 6 counties.One is inter-division cooperation within the same institution;the other is inter-institution cooperation between disease control institutions and medical agencies.In 3 counties with inter-division cooperation model,referral in place rate of HIV/AIDS patients all reached 100.0%（54/54,159/159,335/335）;In other 3 counties with inter-institution cooperation,this rate was 100.0%（39/39）,91.0%（343/377）and 99.9%（786/787）respectively.In these 6 counties,the HIV testing rate of TB patients was 89.1%（2135/2396）（33.0%100.0%）,the detection rate of TB cases was 14.3%（250/1751）（1.6%—22.9%） in people living with HIV/AIDS,and the HIV/AIDS detection rate in TB patients was an average of 3.2%（68/2135）（1.0%6.5%）.TB/HIV case detection through TB screening among HIV/AIDS contributed 78.6%（250/318）（54.9%98.6%） of the total 318 cases detected. Conclusion To establish the cooperation model is the prerequisite for TB/HIV case detection.

Key words: Tuberculosis/prevention &, control, HIV infections, Superinfection