Abstract: In order to understand the flora composition and distribution types of vascular flora in the Zhongshan River National Wetland Park, Wuping, Fujian Province, and the differences of flora with other eight wetlands, the flora richness of different regions was studied by Zuojiabu comprehensive coefficient method, and the correlation of the flora geographical components was compared by principal component analysis and cluster analysis. The results showed that there were 795 species of wild vascular plants belonging to 493 genera and 169 families in the Zhongshan River National Wetland Park, including 84 species of ferns belonging to 57 genera and 35 families, 7 species of gymnosperms belonging to 7 genera and 6 families, and 704 species of angiosperms belonging to 429 genera and 128 families. There were 151 families, 272 genera and 397 species of monospeciae and oligospeciae families, accounting for 89.35%, 55.17% and 49.94% of the total number of families, genera and species, respectively. There were 485 genera and 736 species of monospeciae and oligospeciae genera, accounting for 98.38% and 92.58% of the total genera and species, respectively. There were 14 families, 24 genera and 25 species of alien invasive plants, mainly herbaceous plants. There were 1 species of national first-class key protected plant and 10 species of national second-class key protected plants. The geographical composition of wetland plants was complex and diverse, with obvious tropical attributes in the distribution types of families and genera, showing the characteristics of transition from mid-subtropical to southern subtropical. There were 75 tropical families and 29 temperate families, accounting for 72.12% and 27.88%, respectively, of which pan-tropical distribution family and northern temperate distribution family was dominant. There were 281 tropical genera and 138 temperate genera, accounting for 65.96% and 32.39%, respectively. The geographical composition analysis of plant genera showed that it was most closely related to the Lipu Lijiang Wetland and the Ruyuan Nanshuihu Wetland, and most distantly related to the Haining Changshuitang Wetland. Compared with the flora richness in other regions, the richness of flora was lower than that of the Xupu Simeng Wetland and the Ruyuan Nanshuihu Wetland, but higher than that of other wetlands. In general, the flora richness was relatively high.