Abstract:Based on deformation monitoring results of certain large high-level landslides in metamorphic rock areas, we carry out existing deformation characteristics analysis and deformation development analysis. The results show that CEEMDAN-PSR-KELM-ARIMA model has strong applicability in landslide deformation prediction, the average range of relative error of the prediction results is 2.00%~2.03%, and its variance value is also small, with better prediction accuracy and stability. Its prediction grade is grade Ⅲ-orange prediction, which is in a relatively dangerous state. The landslide deformation rate has a decreasing trend, but the cumulative deformation will still increase.