Urban green space can provide many types of ecosystem services for residents, and the imbalance of its pattern leads to the differentiation of human beings in the process of enjoying its benefits. According to the current situation of ecological environment problems in Xi'an and its basic geographical conditions, the calculation and spatial mapping of four kinds of ecosystem services, including biodiversity, carbon sequestration, air purification, and climate regulation, were realized. The ecosystem services of the whole study area were evaluated and analyzed from the perspective of fairness. Furthermore, the method of regionalization with dynamically constrained agglomerative clustering and partitioning (REDCAP) are used to get the partition group of ecosystem services, and the idea of regional management is proposed. The results indicated that:① the complexity of urban green space community in the study area is low, and the level of biodiversity needs to be improved; the dry deposition flux of PM_2.5 decreases from north to south, and plants have a certain adsorption effect on PM_2.5; the carbon sequestration in the south is higher than that in the north, and that in the east is higher than that in the west; the average surface temperature in the green space area is lower than that in the whole, and there is a strong correlation between normalized difference vegetation index (NDVI) and surface temperature in the study area; ② The distribution of urban green space resources in the study area is uneven, and the distribution of ecosystem services in different regions is unreasonable; ③ Based on the regionalization of integrated ecosystem services, ecosystem services cluster is introduced, including 913 grids, 12 partitions and 5 clusters, which can provide reference for different levels of ecosystem services management. In this way, urban managers can change their thinking, guide the overall green space pattern from the indicators of ecosystem service level, maximize the ecological function of green space, help the sustainable development of the city and improve people's well-being.