With the advent of the information age, the Internet has become the main carrier to publish and disseminate information. In social networks, the proliferation of information has affected a wide range of transmission speed and other characteristics of the Internet in people's lives to provide convenience, but also created a lot of social problems such as network rumor, network and other group events. Internet public opinion for the event, the relevant departments need to be effective induction, analysis, analyzing, forecasting, at the beginning of the event will be able to timely and proactive response thereto, intervention, guidance, and thus effectively play the relevant departments to guide the work of the Internet public opinion accuracy and validity, the maximum degree of completion of Internet public opinion guidance and control work. By Characteristics and Law of Internet information dissemination model, theory and practice together, against public opinion hot events occur in the Internet, the study found information propagation in different social networks, and then summed up public opinion guidance and control methods and policy, has important theoretical and practical significance. Through the information dissemination model flock model, independent cascade model, innovative models, epidemiological model, etc. Implementation and research, dissemination of information to grasp the different environment, information and diffusion characteristics of the way, combined with the reality of a classic case of public opinion guide control methods of research, analysis and summary.
