Microblog scene is shaped by microblog technology and social behavior，while the scene conversion of onstage and backstage and information flow mode are closely related.This essay is based on Meyrowitz’s media situation theory perspective，take participatory observation as research method to research the social behavior influence of scene conversion.Through the description of microblog scene’s characteristics to elaborate interpersonal interaction mode in microblog scene.The author points out that it is important to avoid role conflict and express limit，it is also necessary to study out rules of microblog scene.