The fluctuation of water levels in the reservoir of the pumped storage power station can lead to bank collapses in certain sections,posing a threat to the lives and property of local residents.This paper analyzes the mechanism of reservoir bank collapse and compares different prediction methods to reasonably and accurately select the two-section method for predicting bank collapses in the project area.By fully considering the region's topography,geomorphology,geological environment and other conditions,the necessary parameters are determined,providing a scientific basis for determining the next steps in engineering treatment measures.