Abstract:The earthquake disaster seriously affects the stability of dump slope. Therefore, it is of great practical significance to analyze the stability of dump slope under Seismic Activity for preventing serious geological disasters and ensuring uninterrupted transportation. This study focuses on dump slopes as the research subject, utilizing the GeoStudio finite element software to construct geological models. Numerical simulations are conducted under various earthquake scenarios to assess the dynamic response characteristics and stability of dump slopes. Results show that the displacement, acceleration and velocity at various monitoring points exhibit similar dynamic trends over time.\, with these values, along with the safety factor and extent of deformation, all increasing as the magnitude of the seismic activity increases.. The dynamic response characteristics reveal that the peak values of displacement and acceleration change nonlinearly with the increase of height, and the dynamic response is positively correlated with the elevation of the dump slope, and there is a lag effect in the propagation of seismic waves in the slope. Different seismic magnitudes have a significant impact on the safety factor and deformation degree of the slope. There is a risk of landslide in the dump slope under the earthquake. The research can provide a theoretical basis for the seismic design of dump slope engineering.