[Objective]To study the biomass estimation model of dominant woody shrubs in Altay Mountain .[Method] Taking 6 species of dominant woody shrubs (Rosa spinosissima L., Lonicera cearulea Linn., Berberis heteropoda Schrenk,Juniperus pseudosabina Fisch.et Mey,Spiraea chamardryfolia Linn.,Cotoneaster melanocarpus Lodd.) in the eastern,central,and western areas of the Altay Mountains as research objects.Using different function and the independent variable(D 2H) to build a single species of organs and individual biomass estimation model,selecting the fit of the correlation between the highest and the best model as the best estimate of biomass model .[ Result ] The results showed that the 6 kinds of shrubs in order of the average biomass of an individual plant were Cotoneaster melanocarpus Lodd.[(20.78 ±8.99)kg],Berberis heteropoda Schrenk.[(13.24 ±6.14) kg],Lonicera cearulea Linn.[(12.17 ±3.63) kg],Spiraea Chamardryfolia Linn[(9.20 ±3.74)kg],Juniperus pseudosabina Fisch et Mey[(4.87 ±0.96) kg],Rosaspinosissima Linn.[(4.09 ±1.78) kg].Through the Pearson correlation test of different species in different vegetative organs,found that biomass of the other 5 kinds of shrubs vegetative organs differ significantly (P<0.05) except the Juniperus pseudosabina Fisch.et Mey.Vegetative organs of 6 kinds of shrub biomass and plant biomass were fitting 27 groups,among them,7 set of linear function,9 set of binomial function,6 set of exponential function ,4 set of logarithmic function,1 set of power function.Function of 27 group were significant (P<0.05).[Conclusion] This study can provide theory basis for the forest biomass estimation of Altay Mountains in the future .