To further understand the ecological stoichiometric characteristics of coniferous forest ecosystem plants and soli carbon, nitrogen, phosphorus and their internal relationships, we selected Pinus tabuliformis, Picea asperata, Abies faxoniana coniferous forest in subalpine areas on the eastern edge of QinghaiTibet plateau. We analyzed the carbon, nitrogen, phosphorus stoichiometric characteristics in needle, shrub, herb leaf and soil in each coniferous forest. The results indicated that: (1) C, N contents followed herb leaf > needle leaf > shrub leaf > soil. C∶N, C∶P and N∶P were the highest in shrub leaf, followed by needle and herb leaf, and the lowest in soil. There was a significantly positive correlation between the content of N and P in coniferous forest, the content of C was negatively correlated with the contents of N and P. And C content between needle and shrub leaf, N, P content, C∶N, C∶P in leaves also showed a significantly positive correlation. There was a significantly negative correlation between needle leaf and soil P, N∶P, shrub leaf and soil P, herb leaf and soil N∶P. (2) Our results demonstrated that the contents of C, N and P in the subalpine coniferous forest ecosystem were ranked in the order of P. asperata forest > A. faxoniana forest > P. tabuliformis forest. (3) The contents of C, N and P of different components were followed the order of herb leaf > needle leaf > shrub leaf. C∶N and C∶P all showed P. tabuliformis forest > A. faxoniana forest > P. asperata forest, and C∶N and C∶P showed shrub leaf > needle leaf > herb leaf. Plant growth is limited by N, and mineralization of soil organic matter was slow. Therefore, in the process of coniferous forest protection and management, we suggested to increase the protection of undergrowth and improve soil fertility, so as to maintain the longterm productivity of forests.