This study develops an analytical framework using the Food and Agriculture Organization of the United Nations (FAO) Sustainability Assessment of Food and Agriculture systems (SAFA) and utilizes the Analytic Hierarchy Process (AHP) to evaluate the sustainability of emerging security in South and North Korea. The areas of emerging security related to sustainability were categorized into economic, social, environmental, and governance. These areas encompass food security, economic security, energy security, environmental security, health security, and new technology security. Six key indicators were chosen for assessing sustainability in each security aspect. The analysis revealed that economic security is the primary factor in ensuring the sustainability of emerging security, followed by energy security, food security, environmental security, new technology security, and he alth secu rity. So uth Kore a's compo site in dex for secu rity sustainab ility was 63.71, wher eas N orth Kor ea's was 22 .96, indica tin g a substa ntial dispa rity. So uth Ko rea scored notably higher in all security categories compared to North Korea, except for environmental security. North Korea's key areas for enhancement encompass ‘food supply volatility per capita’, ‘market stability’, ‘primary energy supply diversity’, ‘access to health services’, ‘R&D investment’, and ‘securing irreplaceable source technologies’. The significant disparity between North and South Korea does not automatically indicate a strong likelihood of collaboration in these sectors. The designation of these areas as priorities for enhancement does not guarantee the existence of conducive conditions for cooperation.