To compare fire resistance difference of plant species,combustion experimentations of live leaves from 11 common native woody plant species in Central Yunnan Province were conducted with an oxygen index measuring instrument under high oxygen concentration during the peak forest fire season.Moistrure content,mass per unit area,burning rate,damage extent of the live leaves were measured and calculated.The combustibility orders and classification were put forward based on factor analysis.The results showed that the live leaves of 11 species were divided into four categories including very inflammable species (one kind),inflammable species (four kinds),combustible species (three kinds) and hardly inflammable species (three kinds).