For a long time, Taiwan media industry is affected greatly by the interwoven of economics and politics; before 1988 the numbers of newspaper¡Bbroadcasting station and TV company were heavily controlled by the government, but after 1988, due to the advancement of media technology, we witnessed that not only the scale and scope of whole industry expanded, but also the number of firm increases in accompany with the path of policy deregulation and democratic movement. Due to the emergence of media-broadcasting technology and the ¡§convergence¡¨ of TV¡B communication and network, conglomerate media firm appears in Taiwan which shows the ambitious development of cross-boundary from local-region to region-global, and the approach used by firm attract the attention and concern of scholars in different academic arenas. This thesis firstly proposed an economic-politic analysis of media industry, secondly, presented an integrated framework of industry evolution and international media expansion path, and thirdly, the case of Eastern Multimedia Group is examined and analyzed. Examining the organization change and the expansion path of Eastern Multimedia Group, the similarity between Eastern Multimedia Group and the giant firm like News Group can be found and identified, but seemly that the product sphere and its influence power are not as great as the international firm, and the expansion path is confined by the regional opportunity and market.