P Pulmonary tuberculosis is still a major health problem in Indonesia today. About 110 per 100,000 Indonesians suffer from active pulmonary tuberculosis, which is a threat to transmission of tuberculosis in children. BCG immunization, nutritional status and contact with active tuberculosis patients are some of the factors associated with pulmonary tuberculosis. Previous research said there was no correlation between BCG immunization and the incidence of pulmonary tuberculosis in infants. The study used an observational analytic method with cross sectional design and with a sample of 136 people at the Children's Police RSAL Dr. Mintohardjo Jakarta. Data was collected by looking at the medical record and filling out a questionnaire that included age, sex, weight, body length, BCG immunization status, and a history of contact with adults infected with pulmonary tuberculosis. Data analysis used Chi Square analysis and analyzed using SPSS (Statistical Program and Service Solution). There was no correlation between BCG immunization and the incidence of pulmonary tuberculosis in infants (p = 0.116), there was a relationship between nutritional status and incidence of pulmonary tuberculosis in children (p = 0.022 ), there is a relationship between contact with tuberculosis patients with the incidence of pulmonary tuberculosis in infants (p = 0.018). In this study states that there is no relationship between BCG immunization and the incidence of tuberculosis in toddlers. BCG immunization can reduce the risk of severe TB such as TB meningitis and miliary TB. There is a relationship between nutritional status, contact with patients with pulmonary tuberculosis with the incidence of pulmonary tuberculosis in infants.