Abstract: Pinus taiwanensis is a widely distributed tree species in southeastern China at an elevetion of 700--2000m, one of the important components of the forest communities in this region. Pinus taiwanensis population often plays a pioneer role in succession series, and in some special habitats such as rocky steep slopes or ridges, Pinus taiwanensis population can also form rather stable and persistent open pine forest communities.This study was carried out in Guanshanyuan district of Songyang County, Zhejiang Province. On the basis of a census of all individuals of Pinus taiwanensis at various successional phases and different habitats, age structure, spatial pattern, their dynamics and relationships to environment are described. The Study on Pinus taiwanensis population can not only throws some light on some theoretical themes in plant ecology studies, but is also of practical significance for forest management, utilization and preservation.