The museum architecture has been developed with new social and cultural movement because of the its representative role of cultural character. After emergence of the modern museum in Korea, the function and role of the museum has been changed and developed especially after increasing role by local government. The cultural desire by the new pace of consumerism has requested museums to undergo with some changes and advancements in their function and programs. This research aims to examine the progress of museum programs in Korea even though it has sort history. The scope of the analysis is discussed the extension of existing and new national museums which could be the measurement of the direction of the policy for museum. These changes have a tendency to correspond to social and cultural demands. Based on the existing program, new programs accommodate education and services which represent the characteristic of the museums. These changes caused the extension of the existing museums and the emergence of the small museums which has special program fields and even influences to expand existing museums for sub-characters. The study for chronological changes could be useful to establish the basic guidelines of the configuration for the museum program and space in the early stages for the new construction.