The city image accurately reflects the comprehensive strength and international influence of a city. This report selects 15 domestic first-tier cities and new first-tier cities，such as Beijing，Shanghai，and Guangzhou，as the research objects and establishes a framework for the international communication influence index of these cities. The study found that the current international communication practice of Chinese cities presents characteristics such as matrix pattern，diversification of subjects，innovative ideas，popular discourse，standardized management. However，issues such as pseudo-individualization，cultural discounts，limitation to primary transmission have also emerged. It is recommended that cities can improve risk monitoring capabilities，make comprehensive use of non-governmental forces，realize the integrated design of the city’s image when conducting international image dissemination to further expand the influence of international communication.