From the perspective of the characteristics of social media, Douyin is an emerging short video social app. It not only has the visual performance and experience effects of new media, but also breaks the shortcomings of reliance and passivity in city image communication in the past. Therefore, The emergence of Douyin can not only encourage the public to actively spread the city's image, but also promote the improvement of the city's image. It can also enrich the academic community's theoretical exploration of city image communication. This paper takes Douyin as an example and short videos as an example to study the city image creation and communication of Changchun. This article first summarizes Changchun's urban resource advantages and Changchun's official image positioning, and organizes the history of Changchun's urban image communication and development; at the same time, this study also found that the formation of the image of the Northeastern urban agglomeration on the short video platform And communication also faces problems such as insufficient government participation, serious commercialization, serious homogeneity, inconsistent online and offline experiences, and insufficient cultural heritage. This topic aims to make its own contribution to how to promote the image of Northeastern cities on short video platforms through the research of this topic. At the same time, it also hopes to change the image of Northeastern cities that has existed in people's hearts for a long time.