The Hallyu cultural industry, especially Kpop as a cultural content with greater global diffusion in the information age, has been used by the South Korean government as a soft power tool through channels such as nation brand and public and cultural diplomacy, to create a cultural industry that helps to project a modern national brand that changes its international image and to pursue the national interest. To do this, it is necessary to understand how the Korean government has instrumentalized Ola Hallyu and Kpop as elements of its soft power strategy. In my research a conceptual explanation is made in the theoretical framework of soft power, public diplomacy, cultural diplomacy and national brand. I proceed to explain the Korean development model and the economic crisis of 1997, as well as its implications for Korea and how these factors have helped to build or form the Hallyu cultural industry. Then I proceed to explain what is the Hallyu cultural industry and Kpop, as cultural content of greater use by the Korean government as soft power capacity. Then, I analyze the use of the Korean government of Kpop as an industrial product of a cultural industry, as a cultural product of added value for export, of how the Kpop and the Hallyu cultural industry are used in favor of the Korean national interest and to make Korea cool. Finally, in my research I try to establish or demonstrate how this use of soft power has been beneficial for South Korea for its national interests and its worldwide projection, in other words, how Korea thanks to this instrumentalization of the cultural industry Hallyu and Kpop, it is perceived by other actors.