For the new media in China in 2020，epidemic is no doubt the most important key word. When disconnection happened in some social circumstances，many organizations and individuals made great efforts in connection with the help of new media. Under the special situation，in-depth report was recovering to meet people’s need for truth cognition. The mobile video platforms rising in recent years played important roles in public information distribution，as well as people’s life and work. All kinds of power in we-media，professional or unprofessional，influenced the information ecology of new media. In the epidemic period，the ordinary new media users played the role of public information dissemination media，and lived a mediated life at the same time. There was also an infodemic with the eruption of information virus，which should make us rethink the weakness of communication models on social media.