In 21st century, the world media marketing structure began to be re-organized. The development of the digital technology has been realized through new media, add the world markets were merged into one through the opening of markets, which opened the new age of unlimited competition and re-organization of media service providers. The purposes of this thesis are to develop domestic markets by reinforcing the competitiveness of domestic Internet broadcasting (webcasting) under the changes of the world media industry and the expansion of the Internet broadcasting, and to explore strategies to create domestic Internet broadcasting in the rapidly changing world media markets. In this study, the status and problems of Korean Internet broadcasting were analyzed and some strategies for improving current situations were proposed.