In the era of we-media, there has been a significant change in the patterns of information dissemination. Social media and other digital channels have made it more convenient for people to share information and engage in mutual communication. This has made network public opinion analysis even more important. Network public opinion analysis is a method of collecting, analyzing, studying, and predicting social information, events, emotions, and attitudes in the online sphere. It requires an understanding of the entire public opinion process, including the sources of network public opinion event data, the discovery of public opinion events, and the trends in the evolution of public opinion.