More researches have been conducted on tree rings and their responses to climate change,but the researches through the exact tree growth to reflect climate change is relatively rare. Tree ring is just one of the important indices for measuring trees growth,and can not fully and correctly reflect tree growth,therefore,this paper attempts to clarify the response of Siberia and broad-leaved mixed forest to climate change by analyzing the impact of climate change on the growth of Siberian Larch during this period and to provide scientific basis for the management of local forest resources. Two samples(AYS,SYK)of Siberian Larch(Larix sibirica)were adopted at central region of Altay Mountains for annual tree ring sampling data in 2012 and obtained the 1969- 2011 tree volume growth sequence using Xinjiang Siberian Larch unary volume equation. Correlation analysis of Siberian Larch growth amount and seasonal temperature data was made with SPSS 19.0 software and the model of Siberian Larch growth and seasonal temperature was established for the response the Siberian Larch growth to temperature change and precipitation change. Results show that:in the past 50 years,Siberian larch wood product growth showed a significant increasing trend and has good correlation with the temperature of the growing season; and then showed negative correlation with the June precipitation,and positive correlation with the August precipitation. When growth season average temperature reached 19-21 ℃,Siberian Larch growth amount is the largest. The sensitivity of Siberian Larch growth to the variation of temperature is high at SYK sample plot,and the net volume growth increases 0.936 mm~3 per piece of tree with the temperature increasing 1 ℃;while the sensitivity of Siberian Larch growth to the variation of temperature is relatively low at AYS sample plot,and the net volume growth increases 0.661 mm~3 per piece of tree with the temperature increasing 1 ℃.