In this study, Yimeng mountain area was taken as the research area, and the data of annual table of tree ring width and NDVI accumulated value of vegetation growing season obtained by remote sensing were taken as indicators. The correlation between the accumulated value of NDVI in growing season and the annual table of tree ring width was analyzed by bootstrap method. On this basis, the functional relationship between the two was established, and the NDVI accumulated value of vegetation growing season since the early 20th century in Yimeng mountain area was rebuilt Value time series, and analyzed the volatility and periodicity of vegetation dynamic change in the study area, revealed the relationship between vegetation dynamic and climate change.<br>
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