Based on the field investigation,the flora of spermatophyte in Xinluhai Nature Reserve was analyzed. The results showed that there were 41 families,99 genera and 164 species of seed plants. The top families distribution types were cosmopolitan and north temperate ones,while the main genera distribution types were north temperate and cosmopolitan ones,and the proportion of the temperate ones was higher than the tropic ones,which showed that the north temperate elements were dominant in floristic composition. In this area,the species were lack,and herbaceous plants had a distinct advantage,showing a characteristic of the vegetation.