Oral literature is one of the forms of culture in society. The existence of oral literature is very important in building a socio-cultural system because of its functions. Oral literature has become the object of study, but in particular studies on the function of Mekongga oral literature are still rarely carried out, especially the oral literature of the Mekongga community in Wundulako Village, Kolaka Regency. Therefore, the purpose of this study is to describe and explain the function of the oral literature of the Mekongga community in Wundulako Village, Kolaka Regency. This study uses a qualitative approach with qualitative descriptive data analysis techniques. The results of this study found that the oral literature of the Mekongga community in Wundulako Village has functions such as: 1) as a cultural defense media, 2) as a media for preserving social solidarity, and 3) as a media for character education. The function of this oral literature is as a cultural expression in building the resilience of the socio- cultural system of the Mekongga community.