Complete Systematic Land Registration (CSLR) is useful for the community to obtain the legal legality of land rights. The legal legality of land rights aims to create an orderly administration and legal order, which is urgent to avoid potential land disputes. Currently, it is found that not a few people from the community have an orderly administration of land ownership. This is evidenced by the total number of around 126 million land parcels in Indonesia, but still, around 100.14 million land parcels have been registered in the Complete Systematic Land Registration (CSLR) program, and 82.5 million certificates have been issued. The research aims to analyze the effectiveness of implementing the Complete Systematic Land Registration (CSLR) program based on the Regulation of the Minister of Agrarian Affairs and Spatial Planning/Head of the National Land Agency Number 6 of 2018 for the legality of land rights in Tenggong village, Rejotangan District, also described the constraints and government efforts to make the CSLR program successful in Rejotangan District. This study used a qualitative approach with data collection techniques in the form of direct observation and interviews in the field. Data sources were obtained from primary and secondary data with qualitative descriptive data analysis method. The research results show that the Complete Systematic Land Registration (CSLR) policy in the context of realizing orderly land administration in Tulungagung City has been going well where the policy standards and targets are already heading in the right direction, namely people from weak to middle economic groups, both those with fixed incomes and those with irregular incomes. In addition, the bureaucracy that impedes BPN's efforts and obstacles in the smooth running of CSLR is to be simplified so that the program can be implemented properly, quickly and efficiently to reach even more layers of society who benefit from the program.