In the tenth year of the 21st century, the world has entered the era of social media, and the media pattern and environment have undergone fundamental changes. In the context of new media, the means and means of information dissemination need to keep pace with the times, innovation and reform, and the means and methods of publicity of colleges and universities should be adjusted accordingly. Based on the reality of the current media platform in Chinese universities, this paper analyzes the great role that college media platforms bring to the school's external propaganda work and the practical ability of students in journalism communication.