Spatial pattern of plant populations is the result of the interaction between the biological characteristics and environmental factors,and also is the important factor which decides community composition,structure and dynamic.After an investigation on nine 900 m² plots (three plots in restoration 15 year,restoration 30 year and old growth forest,respectively),a study on the spatial distribution pattern of Castanopsis hystrix,Castanopsis echidnocarpa and Schima wallichii population and their dynamics were made by the tests of discrete distribution pattern.The results showed that spatial distribution patterns of C.hystrix,C.echidnocarpa and S.wallichii population were all the clumped distribution in all three communities.We also found that spatial distribution patterns of C.hystrix,C.echidnocarpa and Schima wallichii population were all the clumped distribution in all sampling areas except for C.hystrix in 10 m×10 m in primary forest and in 20 m×20 m in restoration 15 years community and for S.wallichii in 10 m×20 m in restoration 30 years community.The results indicated clumped distribution was the basic attribute of spatial distribution of C.hystrix,C.echidnocarpa and S.wallichii population.