We used Larix gmelinii at three different latitudes in Daxing an Montains to build the chronology tree-ring width at different latitudes,explored the change regulation of climate factor at different latitude in 1967 - 2005,and then conducted a correlation analysis between climate factor and tree-ring width. The temperature showed a significant increasing trend at different latitudes in Daxingan Montains in 1967 - 2005,but the precipitation did not show a significant change at all latitudes. The standard chronology of high latitude showed the significant increasing trend of trees growth in 1927 - 2007,the growth of mid-latitudes and low latitudes area did not change significantly over the entire time. The temperature was the main factor affecting tree growth than precipitation. With the increase of climate warming,the tree ring growth was suppressed by reduced precipitation in high latitude region.