On the ideological and political teacher symposium, General Secretary Xi Jin-ping emphasize that we must strengthen the research on the college students' cognitive rules and acceptance characteristics in order to unleash the subjectivity of the students. We know that every student is an internet user in the age of internet, so we can’t do anything without  the research on the college students’ cognitive rules. The work of college ideological and political must need to do a deep fusion with the information technology. It’s very mush necessary and possible to analyze the law of information dissemination in ideological and political courses from the perspective of information dissemination.