This study comprehensively analyzed the current status of indoor radon management policies and nationwide survey projects in Korea, with the aim of examining the development of the institutional framework, assessing the present management system, and suggesting directions for future improvement. To this end, the analysis focused on the institutional structure, centered on the Indoor Air Quality Control Act, the Ministry of Environment’s Comprehensive Plan for Indoor Air Quality Management, relevant ministries’ management standards, and the designation system for high-radon areas. In addition, major outcomes from national indoor radon surveys conducted since 2008-including nationwide monitoring, intensive surveys in high-radon regions, and investigations of facilities used by vulnerable populations-were reviewed to evaluate their linkage with management policies. The evaluation revealed that domestic radon management policies have achieved visible progress (such as reductions in average concentrations) through the establishment of legal foundations, periodic surveys, and mitigation programs. However, regional disparities in concentrations and high-level exposures in vulnerable facilities remain. These findings indicate that radon management in Korea should move beyond merely complying with numerical standards and incorporate region-specific management strategies alongside a long-term monitoring system.