This study aims to determine what factors influence the selection of MKJP (Long Term Contraception Method) through the mobile family planning program in Prabumulih City. This research method is a quantitative analysis using secondary data from the 2021 Family Data Collection (PK21). The results showed that the Nagelkerke R Square value was 0.117 and Cox & Snell R Square 0.010, indicating that the independent variable's ability to explain the dependent variable is 0.010 or 1 percent. Ninety-one percent of other factors outside the model define the dependent variable. In conclusion, the element that has a significant influence on the selection of long-term contraceptive methods is the factor of access to family planning services.   Keywords: Determinant Factors, Mobile Family Planning, Motivation