Penelitian ini bertujuan untuk menganalisis fungsi pengawasan hakim terhadap putusan pengadilan. Penelitian didasari pada bahwa pengawasan pada tahap pelaksanaan putusan dalam sistem peradilan pidana dapat dilakukan setelah adanya putusan pengadilan yang telah berkekuatan hukum tetap (incraht). Metode Penelitian yang digunakan adalah metode penelitian normative. Hasil penelitian menunjukkan bahwa Fungsi pengawasan hakim pengawas dan pengamat (Kimwasmat) terhadap pembinaan warga binaan (Wabi) adalah memberikan kepastian terhadap jaminan perlindungan hak asasi warga binaan (Wabi); memberikan jaminan kepastian hukum terhadap pelaksanaan putusan hakim; jaminan pembinaan warga binaan (Wabi) dalam rangka reintegrasi sosial di masyarakat This study aims to analyze the supervisory function of judges against court decisions. The research is based on the fact that supervision at the stage of implementation of the verdict in the criminal justice system can be carried out after the existence of a court decision that has permanent legal force (incraht). The research method used is a normative research method. The results of the study showed that the function of supervising supervisors and observers (Kimwasmat) towards fostering the assisted citizens (Wabi) was to provide assurance of the guarantee of the protection of the human rights of the assisted people (Wabi); provide legal certainty against the implementation of judges' decisions; guarantee of fostering fostered citizens (Wabi) in the context of social reintegration in the community.