China in the transition period is experiencing multiple challenges of economic growth and social change, and there are many contradictions in various fields. Strengthening the monitoring and guidance of network public opinion in the we media era should and has become an important content of building a harmonious society. We should master and understand the characteristics of network public opinion communication of emergencies in the era of we media, the process based on the evolution of public opinion and the law of communication and diffusion, effectively guide the network public opinion communication of emergencies, and provide reference for the effective use of we media.