I would like to discuss about the relation between museum and the preservation system of intangible heritage related to the traditional craft arts in Korea. Korea has managed the most creditable preseπation system of intangible heritage in the world. It was the model when UNESCO designed “Proclamation of Masterpieces of the Oral and Intangible Heritage of Humanity" in 1997. The Scope of intangible heritage is very broad. It is often difficult to dec?de what to preseπe because it varies in accordance with what point of view to take. In Korea, Cultural Heritage Preservation Act defines intangible heritage as “drama, music, dance, and craft skills etc. that are the outcomes of the intangible culture and have historical, artistic, and acadernic values". According to the Act, types of intangible heritage are classified into two categories that are, perfoffiling arts and craft arts. The preservation system of intangible heritage in Korea focuses on the support of those who have the traditional skills worthy to preserve . The governmental supports help them to maintain skills and hand over them to their successors. However, this system has nothing to do with museum. Museum has related to the tangible moving heritage while the ethnography museums collect instruments, costumes and craft items that had been made or used by the predecessors. In such museums most secrets of the traditional skills are hidden in the tangible objects. Fortunately there is a living history of the traditional craft skills in Korea. It is the national and regional intangible heritages. Museum has developed methods to conserve the tangible past. How museum can help preserve the living intangible history? In order to preserve the traditional craft skills, museum has to transfer the tacit knowledge that masters have obtained through the long experiences into the explicit knowledge. For examples, that is how to get and treat raw materials, how to make and use tools, how to design and create craft items etc. In most casesthe distribution of this kind of knowledge has been confined to some successors and acadernic researchers. Museum can change this situation. But in order to preserve intangible heritage, museum has to change its core activity from collecting objects to organizing knowledge through converting the tacit knowledge into the explicit knowledge. The most important activity related to production of knowledge is the research on the whole process of craft skills and the life of masters. The process of systematization of knowledge produces not only the collections-raw materials, tools and craft works etc. but also the diverse types of documentations-interviews, multi-media records and research papers etc. The traditional museum regarded the latter as complementaty rather than the former. However in regard of intangible heritage, the latter may beas important as, or more important than the former. At this respect, museum cannot help being combined with archive. This museum/archive is able to help masters to hand over the traditional skills to their successors, to provide useful information to academic researchers and to inspire contemporaty craft artists. National Heritage Research Institute has been a crucial role in these kinds of activities. But it is not enough in the era of knowledge-based society, because in such a society it is important for people’s welfare not only to produce knowledge but also to distribute and apply knowledge. Here is the essential role of museum. Museum can make intangible heritage live in the cultural life of people through the diverse communication and marketing techniques adopted by it-exhibition, education, production of cultural commodity, tourism etc. There is the reason why museum has to combine with the preservation system of intangible heritage in Korea. Museum can make a living histoty live in our everyday life rather than in our memory.