Abstract: In this paper,the Characteristics of response function of tree ring width and tree ring density with monthly precipitation and average monthly high temperature were analyzed.The method of stepwise regression analysis was used to selecttree ring factors which were correlated better with climate factors.As a result,precipitation reconstructions are derived using stepwise regression models that predict precipitation (6～9) as a function of latewood width chronologies,maximum density and minimum density,temperature reconstructions are also derived using stepwise regression models that predict average monthly high temperature (4～9).The reconstructions indicate that there are notable periodic changes of precipitation (6～9) and average monthly high temperature (4～9) over the past 150 years in the Jimusaerarea.The resultare coincided well with do cumentrecords.