A research on the relations of Pre-Marital Intercouse of Adolescent Workers and the Influencing Factors was conducted using secondary data from the Development of Health Services Model Research on HIV/AIDS Infected Prevention for Adolescent Worlcers (Step II) in 1999/2000. The research case study was conducted at PT. Telagamas Mitra Alasmdo Pasuruan East Java. By using multivariate logistic regression analysis (PIN= 0.15 and POUT = 0.20) out of 9 identified variables that substantiality logic influenced the incidence of pre-marital intercouse among adolescent worlcers, finally only one variable to be identified, namely interaction variable that belonged to the logistic regresion equation model. This interaction variable was ever making love and at the same time using drugs that significantly influenced the incidence of pre-marital intercouse (p = 0.0032).