Abstract: Objective To analyze the screening results of close contacts of pulmonary tuberculosis (TB) among college students in Huai'an,so as to provide evidence for TB control and prevention in schools.Methods Close contacts of TB among college students in Huai'an from 2013 to 2015 were screened by investigation of TB suspicious symptoms,PPD-test,chest X-ray,and Mycobacterium tuberculosis examination.Results Totally 682 cases of close contact of TB were registered among college students in Huaian from 2013 to 2015,100% close contacts received suspicious symptom of TB investigation,97.21% received PPD-test,and 70.23% received chest X-ray examination.The results of statistics showed that the rates of intensively positive of PPD(30.1%) and abnormal chest X-ray (3.5%)were both higher than that of closely-contacted sputum smear positive TB patients (16.6%,0.6%) (x2=14.570,4.087,P<0.05).The six sputum smear negative TB patients were screened to be treated by designed hospital,but among the other contacts that should be preventively cured,no one received preventive medication.Conclusion In order to control the epidemic of TB in school,standard screening should be carried out timely on the TB close contacts to reduce the spread of the epidemic,and simultaneously,preventive medication should be carried out on the contacts to reduce the risk of morbidity.