The work aims to analyze and compare the domestic and foreign literature according to the scientific knowledge map, and to analyze and summarize the hot issues and development trends of the current city brand based on objective data and intuitive map analysis. The visual literature analysis software Cite Space 6.2R1 was used to analyze city brands at home and abroad with Peking University core, CSSCI, SCI journal literature in the CNKI database and the city brand-related literature included in the Web of Science core collection database as data sources. A scientific knowledge map was drawn for visualized analysis on issues such as the number of published papers, the distribution of cooperation between authors and research institutions, relevant research hotspots, and development trends in research fields. The number of articles published by foreign city brands is fluctuating and rising; Authors and research institutions cooperate closely, forming an obvious cooperative team; City, impact, and model are research hotspots; Reputation, engagement, mediating role, perceived value, and experiences are relatively influential research Frontier fields; The overall research focuses on the interaction between city brand and external factors, how to improve the status of the city in the public mind through brand building and dissemination, and how to increase the interaction and participation between people and the city brand; The research trend ranges from theoretical research to practical application, from a single perspective to multi dimensions, and from systematic to participatory research. The number of papers published by domestic city brands is lower than that of foreign countries, and the overall volume of papers fluctuates and slowly increases; Authors and research institutions do not cooperated closely, and no mature cooperation team is formed; City brand, city marketing, city image, and brand are research hotspots; City image, urban development, and brand image are more influential research frontier areas; The overall research focuses on the city brand itself, how to promote the improvement of the city image with city brands; The research trend ranges from spontaneous to conscious, from individual cases to general, and from local exploration to overall planning advance.