Abstract: Based on several field investigations, the quantitative characteristics and floristic composition of wild vascular plants in Chengdu Longquan Mountain Urban Forest Park were analyzed. The results showed that: (1) There were 628 species of wild vascular plants, belonging to 442 genera and 138 families and 7 species of national second-level key protected wild plants in this area. The herbaceous plants were the most abundant with a total of 392 species, accounting for 62.42% of all species. (2) In terms of family and genus composition, few species families and single species families were dominant, accounting for 78.26% of total number of families; In the genus composition, few species and single species were dominant, accounting for 98.87% of total number of genera. (3) The types of distribution were various, including 10 types and 5 variants at the family level, and the tropical component were dominant. There were 14 distribution types and 18 variants at the genus level, and the tropical component were slightly more than the temperate component, which had obvious subtropical characteristics.