The rise of Internet not only brings a revolutionary influence to world’s communication, but also provides a new instrument and an information pipeline for Mainland China. It also affords a new kind of media, which could get in to the Chinese societyat the same time. Therefore, the new age of Internet would bring more challenge and conflict to the social and political institution of Mainland China. For this reason, it is also a serious and difficult problem for the Chinese government to enforce the censorship of Internet to avoid international interventions in the internal affair of China, and at the same time, to use Internet as political propaganda.