The 2003 Convention plays a major role in safeguarding the Intangible Cultural Heritage. It is the first international legal instrument that has focused on the traditional elements of life. To date, more than 508 elements of more than 122 countries have been registered in the UNESCO nomination list of Intangible Cultural Heritage. The number has been increasing every year. It validates the value of the Intangible Cultural Heritage to the world. The Republic of Korea, which has more than fifty years of history in Intangible cultural heritage preservation, is one of the leading countries in the Intangible Cultural Heritage Preservation. This paper has intended to study one of the UNESCO nominated ICH elements of traditional dance performances i.e. Ganggangsullae of Korea and see the impacts after its nomination. Ganggangsullae has been successfully safeguarded in Korea. Its inclusion in the education curriculum has made it possible to disseminate its historical significance and values to the younger generation. Despite the effort of the state, Ganggangsullae seems to lack the interest of the people. It is an important issue to understand the reasons and find ways to revive its essence rather than being confined to the documents.