The Taiwan earliest online game company was Huayi International which was established in 1993 by introducing the first complete online game ¡§Stone Age¡¨ that caused a network wave and lead Taiwan¡¦s formal entry into the field of online game. Since 1999, the rise of South Korean online game technology which created the huge benefit from online game market and cause this industry into a whole new generation. As mention about the development of the online game in Taiwan, actually it is a contradiction issue, because the position of online game has not been consider a health and leisure activities. In addition, the primary channel of promote online game is net coffee, which is often regarded as improper place, thus the online game has been in the ambiguous environment. As the change of different generation, online game become more diversified chose and leads to high competition pressure of market, therefore, the free web game developing fast and has the trend replace a part of online game market. From the gaming market and user perspective, the web game is definitely not a mainstream game; furthermore, it also can not become mainstream production. But it meets the needs of some people to adapt to a market segment. Therefore, this research is analysis the management and marketing strategy of web game company ¡§ Cool You network company¡¦s web game production---Magic Mirror web game¡¨. The purpose of this research is through the analysis by the case interview to understand the innovative of marketing strategy and new idea of web game that in order to assist the game industry to develop effective marketing strategy to attract consumers.