I Immigration plays a strategic role in safeguarding state sovereignty while ensuring the protection of the rights of indonesian citizens (wni). however, the increasing mobility of indonesian citizens in batam during the 2023–2025 period has created challenges in immigration supervision. this study examines the role of the batam immigration office in supervising the exit and entry of indonesian citizens and identifies the obstacles encountered in carrying out such supervision during the same period.this research employs a normative legal research method with a descriptive approach. data were collected through a literature review supported by interviews and analyzed qualitatively. the findings show that the batam immigration office conducts both administrative and field supervision over the exit and entry of indonesian citizens, although the implementation has not been consistent. administrative supervision includes document verification, subject identification, and data recording in the immigration management information system (simkim). field supervision involves physical inspections, interviews, monitoring of indonesian citizens at immigration checkpoints (tpi), and coordination with indonesian overseas missions.nevertheless, the batam immigration office does not routinely compile exit prevention lists, monitoring of indonesian citizens abroad is not comprehensive, and administrative examination reports are incomplete. these conditions constitute violations of article 70 of the immigration law and regulation of the ministry of immigration and corrections number 2 of 2025, particularly articles 7, 8, 14, and 15. the main obstacles include limited human resources, information technology system disruptions, and low legal awareness among indonesian citizens, which hinder data collection, verification, and monitoring. as a result, data accuracy decreases, the potential for document misuse increases, and the effectiveness of immigration supervision over indonesian citizens becomes limited.