This research intends to analyze the social marketing implementation of Program Keluarga Berencana (KB) by Badan Pemberdayaan Perempuan dan Keluarga Berencana (BPPKB) of Pasuruan City during 2015. The implementation of social marketing is an effort to campaign the importance of population control in Indonesia (especially in Pasuruan City) as a problem solver for demographic problems. The purpose of this study is to find out how the social marketing implementation of Program KB by BPPKB Pasuruan City in 2015. The Theory used to clarify the basis thinking of the author in this research is the theory of social marketing according to Philip Kotler & Eduardo L. Roberto. The type of this research are included to descriptive-qualitative research type. Data collection techniques used in this research are interviews to the BPPKB Pasuruan City, PLKB Officer (Program KB Field Extension), and community members who became the target of program KB. In addition, researchers also use documentary techniques in the form of books and non-human information sources as research support (such as documents, recordings, and notes). Data analysis technique used is non-statistical analysis, that’s qualitative analysis. The results of this study show that the implementation of social marketing Program KB implemented by BPPKB Pasuruan outline is good and in accordance with the theory of Kotler & Roberto. All stages from planning, organizing, implementation, to evaluation are considered good. However, in practice is more flexible by adjusting the conditions of the region and targets. But this flexibility is certainly not out of the existing theory. In the future, it must make various improvements so that the goals can be achieved better and maximum.