In the all media era, the media is constantly affecting the space-time relationship between subjects with earth shaking trends. By continuing, subverting, transforming and reconstructing the transcendental world of subjects, it creates a Xintiandi of life and communication space and affects people's language communication in real activities. With the increasing mobility of information discourse, all people can access, produce and consume data information, and information release has also been redefined by individuals. Therefore, the teaching discourse of the ideological and political theory course in colleges and universities needs to keep pace with the times. On the basis of the original ideological and political discourse, strengthen the dynamic, interactive and practical nature of the teaching discourse.