The concept of city diplomacy is one of the basic components and tools of urban management in the 21st century. Given the backwardness of some cities in developing countries in expanding their international relations with global cities, it is necessary to identify the factors that lead to the weakening of city diplomacy performance by examining and evaluating city diplomacy indicators in these cities. The present study evaluates citizens' satisfaction with city diplomacy indicators in the Tabriz metropolis. The research method is descriptive-analytical and the research approach is qualitative and quantitative, and the nature of the research is applied. To analyze the data from the questionnaire and use the statistical tests of one-sample t, one-way analysis of variance, Friedman and Kruskal-Wallis, the research data were collected using library documents and field surveys, and the sample size was estimated to be 385 people according to the Cochran formula. The indicators determined in this study are, in order, the index of "urban economy", "urban culture", "urban development", "urban security", "urban representation", "urban networks" and finally "urban research". The results of data analysis indicate that from the point of view of the residents of the metropolis of Tabriz, the component of "urban economy" is the most important among the elements of city diplomacy evaluation. Also, the components of "urban culture" (4/81), "urban development" (4/48), "urban security" (4/25), "urban representation" (4/21), "urban networks" (4/12) and finally "urban research" (3/71) are ranked second to seventh, respectively. The aforementioned ranking indicates that the importance of city diplomacy components is not the same for citizens in the Tabriz metropolis, and in general, residents' satisfaction with city diplomacy indicators is below average.