With the rapid development of communication technology, in the research of news communication in the Internet era, it has become an important topicto study how to effectively guide the behavior of fans, such as mass nationalism with the help of the Internet. From the perspective of structural theory, it can be found that the invasion of commercial capital and the dissemination of mainstream consciousness have influenced the formation of the structure of fans’ consciousness. Emotional cognition, communication of values and conquest of mind have promoted the generation of fans’ subjectivity. The key to guiding fans’ ideology lies in breaking through the fan circle and spreading mainstream consciousness. Only in this way can they stimulate their emotional cognition and value communication, and finally achieve the purpose of conquering their hearts, so as to build the “public domain” for the fans.