This article tries to discuss the position and viewpoint of the United daily news' editorials about the process of the magnificent political events during the postwar decades in Taiwan. From the first issue of publication, the United daily news kept being highly concerned about Taiwan politics. Therefore, when in the faces of magnificent political issues, its position of “social mechanism” was so obvious. Without doubting, the paper has its special position during the political process in Taiwan. In general, the paper has long being viewed to tend to the party in power. Though it will echo with the party in power to some extent when anlysising the argumentation of the paper; meanwhile, we should pay attention to the age and background of the paper. As a mass communication, the United daily news shows varieties when reporting the magnificent political events. It may be critical to analysis its position and viewpoint with afterthought, but it can't be ignored that the development of mass communication under the instruction of the government.