Abstract: In the 5G era, in order to change the previous low-level mode of Hefei image short video dissemination and content production, the study aims to solve the dilemma of single communication subject, homogenization of communication content, and lagging communication technology. By using the methods of literature analysis and content analysis, this paper, based on the current content and communication status of short videos in Hefei, digs deep into the humanistic characteristics and regional style of Hefei city, and relies on the latest audio-visual effects to build the agenda setting relationship among the government, media and the public in various directions in the communication subject, so as to achieve a win-win situation of mainstream value output and user demand. In terms of communication content, the brand-new visual symbol "BEST" is used to upgrade and optimize original content, and under specific coding rules, Hefei can build a rational city image. In terms of communication technology, 5G + AI + VR technology is used to create characteristic short videos with "content + socializing + scenes", and the relationship between socializing and scenes is continuously deepened in high-definition virtual reality videos and immersive interactive experiences, so as to create an immersive, digital and scene-based multi-dimensional image of Hefei city.

Key words: 5G era, Hefei image, short video communication