Based on 4 hm² wellpreserved forest plots in the present CTFS technical standards in Taiyue Mountain, which was established in 2014, the thesis aims at investigating and characterizing wooden plants with diameter breast heights (DBH) > 1 cm, and finally analyzing the community composition of the sample plot. Altogether 9 698 wooden plants, 209 dead trees included, were investigated. The dominant populations were divided into three growth stages: saplings (1 cm≤DBH≤10 cm), juveniles (10 cm<DBH≤30 cm), and adult trees (DBH>30 cm). Point pattern analyze in irregular area were used on the basis of removal of spatial heterogeneity. The spatial distribution pattern of dominant trees from 0-100 m was explored quantitatively and then the effects of dead trees on their spatial patterns were discussed. In addition, pattern type in different growth periods was measured by paircorrelation g^{^}(r) function to explore the spatial distribution patterns and maintaining mechanisms of dominant trees in Taiyue Mountain as well as the ecology adaptability strategy and the population dynamics. The results of the study were as follows: (1) Quercus wutaishanica, Betula platyphylla, Carpinus turczaninowii, Acer mono, Crataegus cuneata and Pinus tabulaeformis are major dominant species. (2) The main tree species showed aggregated pattern in the sample plot, and the dead trees could weaken the degree of aggregation, tending towards random distribution. (3) The paircorrelation g^{^}(r) function showed that the cluster degree of every individual in different growth periods decreased with age. And this transformation is a kind of a comprehensive reflection on biological properties and environmental condition of the population. Based on the survey, a preliminary conclusion was drawn that there are some kind of density restriction effect in the sample plot.