In this study, the dominant species Eurya alata population in Mulinzi Nature Reserve of Hubei Province was taken as the research object, and the static life table, the survival curve, the mortality rate curve and the disappearance rate curve were draw up; The spatial distribution characteristics of all age classes were analyzed by paircorrelation function, and the spatial relationships between different lifehistory stages were explored by bivariate paircorrelation function, which provides a theoretical reference for expounding the role of different construction laws of evergreen deciduous broadleaf mixed forest in the maintenance mechanism of species diversity in Mulinzi Nature Reserve. Results showed: (1) E. alata population is the growing population; The survival curve tended to be the DeeveyⅡ type. (2) The mortality and disappearance rate curves were unimodal. The Ⅰ, Ⅱ, Ⅲ, Ⅳ, and Ⅴ age classes of E. alata population showed aggregation distribution and decreased with the increase of diameter grade. Ⅵ, Ⅶ age classes appeared to be randomly distributed on a large scale. (3) Under the complete spatial randomness, all stages of life history are positively correlated with range scale. Antecedent condition excludes the habitat heterogeneity, there is no correlation and negative correlation between adult trees and sapling and small trees on a small scale; and other stages of life history are positively correlated on a small scale, but no correlation on a larger scale. The results show that, E. alata population are rich in saplings and in good regeneration state, and in the process of natural succession, habitat filtration, diffusion restriction and density restriction may drive the population construction process.