Office Program) have been undergoing construction in order to achieve balanced national development, increase global competitiveness, and strengthen security in South Korea. The three megaprojects above share in common that they are governmentled, long-term, large-scale, complicated and complex projects involving a large number of stakeholders. Accordingly, the government needs a step-by-step approach for performance assessment that is free from a single project management method in order to successfully carry out megaprojects that require large budgets. Therefore, in this study, the characteristics of the above three megaprojects are compared and analyzed to derive performance assessment from the program management point of view (interview with experts, etc.). This paper illustrates the importance for performance assessment by applying the AHP (Analytical Hierarchy Process) technique which can obtain objective and systematic results for identifying common points and derived factors. The results of this study are expected to improve the efficient use of budget resources and increase public convenience when applied to megaprojects in Korea, such as the Gadeokdo New Airport and Daegu-Gyeongbuk Integrated New Airport, as well as the Saemangeum reclamation project which is currently in its early stages.