Abstract: Chengbu County is abound in plant resources, there are 891 species of woody plants belonging to 322 genera, 112 families, the woody flora is noted for its richness in species, floristic composition and endemic elements, for its archaic origin and transition, etc. In this paper, we divided the flora of Chengbu into two districts and seven sub districts.It is suggested that the natural conservation region should be built in Chengbu County to conserve and develop the natural forest and rare plants.