The exclusion of certain tribes in an educational system can be best understood from the context of national educational policy. The new national education policy in Indonesia causes the exclusion of minority tribes such as "Samin" community in Indonesia. This study investigates how the National Education law (SISDIKNAS) was implemented, the position of minority groups in the national education system, and the outcomes of the implementation of the national education system for minority groups. This study incorporates the qualitative method to describe the phenomenon that occurs within the minority groups. The results show that some articles of SISDIKAS indicate the detribalization of ethnic minority communities. This research is limited because of its site and scope; therefore, further research can be carried out on "Samin" community in responding to government policies with a broader research site and scope to produce more comprehensive analysis.