Abstract: The community characteristics of Pinus tabulaeformis forest sown by plane in Three Groge reservoir area,such as composition and stucture,are reported in this paper.The results obtained show that the community was an association Pinus tabulaeformis-Lespedeza formosa-Ptericliurr aquilinum+ Spodiopogon cofulifera which belongs to Pinus tabulaeformis formation,and would evlute to coniferous and broadleaf forest.The growing circumstance and microclimate in the community are also reported in this paper.