Ⅰ.Research Origin China’s economy,politics,culture and even the whole society are undergoing profound changes,and various benefit relations and social contradictions interweave diversely.Under this background,the central committee of the communist party brought up the strategic decision of constructing a socialist harmonious society.In response,whether will mainstream media,as our Party and the government’s main mass media,change? How? With empirical study,this paper tries to verify and guide the practice. I. Origin Origin China’s economy, politics, culture and even the whole society are undergoing profound changes, and various benefit relations and social contradictions interweave diversely. Under this background, the central committee of the communist party brought up the strategic decision of constructing a socialist harmonious society.In response, whether will mainstream, as our Party and the government’s main mass media, change? How? With empirical study, this paper tries to verify and guide the practice.