Since the Chinese Communist Party established a government in 1949, this country has operated the control of the society, nearly via penetrating to the society interior basic-level organization. After the political reform of social structure and economic basis, the Communist China has determined her pattern of penetration, mobilization and control in the society. As domination of the media has been one of the pivotal means in society control, the Communist China official can decide which information people may receive through the strict news scrutiny, and takes advantage of this method to instill people the official ideology as well. News involves the social turmoil, affects the populace confidence to the government or implies the peaceful evolution, is forbidden to disseminate on the mainland media. However, the Internet¡¦s unbounded penetration turns out to be a big challenge to impose such a strict scrutiny, challenging the Communist China to carry on the traditional way of controlling the society by maneuvering the media. To the Chinese government which has not been used to considering the populace opinion, what more and more disadvantageous is that the Internet has started to become a newborn power to be able to affect the Chinese politics and the policy decision, even although policy makers would not defer to the public opinion in doing the decision-making, they would not be able to shun it entirely. This article is to research and discuss, mainly from the aspects of social consciousness, nation and society relations, national sovereignty and so on, the Internet development in mainland and the control by the Communist China. Simultaneously, from the dissemination function and the characteristic of the Internet, it is to inspect its influence to the country and the society nowadays, furthermore, to extrapolate the possibility of network democracy. Given the fact that Internet may bring the consequences of loosing the control on country and society, the Communist China has established the comprehensive control measure, preventing by all means the so-called harmful information to circulate, achieving also the effect of threat and restriction while she is developing with all her strength. The challenge to the authority renews as the code-breaking technology renews with each passing day, also. Therefore we may extrapolate accordingly that the Internet development has caused the Communist China¡¦s authority to decline day after day. And the society may obtain the relative development of independency and diversity. Presently in China, the population ever accesses the internet already exceeds one hundred million. Although it is less than 8% of the total population and still a long way to go to accomplish overall popularized, the new community group and network consciousness already take the berth of the traditional dissemination media. Along with the rising of the young, non-ideological and malleable network new generation, it inevitably will accelerate the deepening of affecting the society. Therefore, this topic also will be worth continuing to observe and research.