Recently, K-pop is leading the development of Korean pop culture. And it has established itself as a culture that is accepted and maintained voluntarily by the public worldwide. Cultural development in a region is important because it is a product of the social quality of society. With the debut of ‘Seo Taiji and Boys’ in 1992, the idol group music began in Korea. At present, BTS has formed a global fandom and has become one of the most successful cases among Hallyu content. Therefore, for the development of Korean pop music industry, this study analyzes in various ways what strategies of BTS have made them successful.