As the first documentary film focus on a university in China，The Great Learning takes Tsinghua as its background and the four main characters as its characters. After three years of filming and production，it completely presents the important life transitions experienced by the characters from 2018 to 2020. By showing the choices made by the characters at different stages of their lives，the film illustrates the university spirit of the new era and provides a contemporary example of the integration of personal value realization and national development and rejuvenation. In this paper，we extract the creative features of the film，namely the theme of education and ideal struggle，the creative method of “direct cinema” and cinematic quality，and the social attribute of combining documentary and mainstream；we also discuss the film’s promotion strategy from two levels：region and audience，combining data and cases.