Abstract: 【Objective】 By analyzing the species composition of the community after high-intensity cutting and the variation characteristics of the important values of the main plant species in the regeneration community of Picea Schrenkiana under different cutting grades and cutting periods, the variation law of the regeneration community was explained from the point of view of the species composition. The aim of this paper is to provide scientific basis for species composition of regeneration community, implementation of natural conservation project and forest restoration evaluation after cutting in Picea Schrenkiana. 【Method】 The dynamic changes of the main plant species in arbor layer, shrub layer and herbaceous layer of Picea Schrenkiana regeneration community were studied by quantitative analysis of important values under different intensity cutting grades and cutting periods. 【Result】 There were 67 species of plants belonging to 61 genera and 33 families in the regeneration community after high-intensity cutting. Dicotyledonous plants played a decisive role. Arbor layer was well developed, shrub plant was not well developed, herbaceous species were numerous and large, among them, Asteraceae species were the most, accompanied by a certain number of distinct characteristics of single family, single genus, single plant species. The relative dominance and important value of Betula tianschanica increased firstly and then decreased slightly when the interference intensity increased. The longer the cutting time was, the less important value and relative dominance of regeneration Picea Schrenkiana would be. Betula tianschanica was the opposite. Species richness did not change significantly with cutting intensity in subshrubs and herbaceous layers, and the dominant species was Aegopodium alpestre. The species richness was the smallest after cutting > 40 years, and the species richness increased after forest regeneration and restoration. In the last 20 years, the forest community competition was intensified, the weak species decreased, and the undergrowth species richness decreased. 【Conclusion】 The longer the intensity of active jamming and the time of cutting from now, the smaller the important value of Picea Schrenkiana in arbor layer is reduced, the more important value and relative dominance of Betula tianschanica are increased; there is no significant difference between species richness and cutting intensity in subshrubs and herbaceous layer.