Social life network is rapidly advancing in the transition period of social and economic development.It plays a very important role in the communication and interaction of social life in cyberspace. The advent of the network society, social public space which exists the confined physical geographical and experiences society and private space gradually move toward integration.It show the trend that the public space is virtual and private space is public. Virtual communities become to the space that members of the different sectors of society, groups, freedom of expression, equal exchange, it's also the most dynamic, the widest impact on communication and mutual calendar platform. Cyberspace as exchange of information, to express their views, speech, release of emotions,is also the important platform and the approach which resolve social conflicts,realize the social governance, and build the harmonious society. <<