This article discusses the network of local cultural industry in Korea using an unit root from Input-output table. The data source is from Korean Interregional Input-output table of 2005, and it is applied to 7 Economic Regions in Korea including Seoul, Kangwon, Chungchong, Jolla, North Gyeongsang, South Gyeongsang and Jeju. The framework of analysis is Social Network Analysis which enables to find out the structure of key industry and linking relationship between the 7 Economic Regions by assessing the degree centrality and network density. On account of much higher level of in degree centrality than out degree centrality, the growth of cultural industry is able to lead production activity of other industries. The network density of cultural industry reveals thicker than other industries due to advantages to create additional job opportunity and bring a cooperation between other industries. The Seoul Economic Region has the highest value of out degree centrality and of network density that means the Region occupies the highest and the most powerful hierarchy in local cultural industry of Korea. This outcome agrees with the result of structural equivalence via profile similarity in local cultural industry of Korea. On the other side, Jeju Economic Region has the least value of out degree centrality and of network density which implies weak connections between other industries and the 7 Economic Regions.