Research on Emotional Infection of Social Media Users during the Epidemic—Take Lianhua Qingwen Incident as an Example

: With the rapid development of the Internet, Internet has become a way for people to receive information, transmit information and entertainment, which undoubtedly makes the venue of public opinion change from offline to online. Especially in the face of major social emergencies, people receive, transmit and exchange information through social media to spread emotions, realizing the transition from spreading information to spreading emotions. When emotional infection reaches a certain level, certain behaviors will occur. This study on the emotional contagion, collective behavior theory, to even take antipyretic capsule during outbreak snapping up as an example, the design of questionnaire, randomly selected WeChat and weibo users, a total of 60, adopts the method of quantitative analysis and research in online communities, public mood generated by browsing, interactive infection and collective behavior.The results show that during the epidemic, users will experience emotional infection when they browse related posts and comments in online communities. The emotional infection degree of ordinary users is affected by the opinion leaders, the closeness of community and the environmental development factors of COVID-19. Whether emotional contagion will trigger collective behavior to a certain extent depends on the rational judgment of users.