Research on the relationship between glacier fluctuations and climate changes on decadal to centennial time scales, which is of great significance for our understanding on the changes of global cryosphere, is greatly limited by the lack of sufficient observational data on glaciers and climate changes. Hengduan mountains is one of the distribution centres of maritime glaciers in China, where dendroglaciological evidences for glacier advances/retreats, glacial moraines and tree-ring materials formed since the Little Ice Age(LIA), were well kept. This study intends to:(1) reconstruct the fluctuation history of glaciers in Hengduan mountains through analyzing tree-ring materials sampled from relict wood and tilted trees directly affected by the glacial movement, and dating the moraines based on the age of the oldest tree growing on morainic surface, with an adjustment for the pith offset, age error of sampling height and ecesis time; (2) reconstruct the past temperature and precipitation variations using tree rings sampled from upper forest limit and mountain forest-dry valley ecotone, separately; (3) reveal the relationship between LIA glacier fluctuations and climate changes. The results of this study will contribute to the understanding on the relationship between glacier fluctuations and climate changes on decadal to centennial time scales, and provide useful knowledge for the prediction of glacier change under future climate scenarios.