To understand the species diversity of the Hopea chinensis community,improve species data,and improve the protection of rare and endangered species,the community species composition was investigated and analyzed through a field quadrat setting,and its importance value and species diversity index were calculated.The results showed that:(1)the commu-nities of the four plots were rich in species,with 87 tree species belonging to 38 families and 63 genera.It is mainly composed of Fagaceae,Lauraceae,Rubiaceae,Camelliaceae,Rhodiaceae,and Garcinaceae;(2)the main tree species were Streblus in-dicus,H.chinensis,Lithocarpus glaber,Quercus griffithii,Engelhardtia roxburghiana,and Macaranga rosuliflora.The prime shrubs are Ardisia quinquegona,Rhododendron simsii,Macaranga henryi,and Blastus cochinchinensis;(3)the diversity index of the tree layer was greater than that of the shrub layer,and the diversity indices of plots 1 and 2 were greater than those of plots 3 and 4.In conclusion,the H.chinensis community has a rich species composition and a high diversity index,and human activity factors affect community diversity somehow.This study provides a scientific basis for wild H.chinensis population conservation,restoration,and biodiversity maintenance in this region.