<p>This study focuses on the earthquake-induced permanent displacement of earth slopes. Dynamic analysis of earth slopes was investigated under main and wavelet-based decomposed earthquake records. The analyses were performed through finite element modeling and seismic displacements were determined using limit equilibrium approach. Earth slopes with different inclination angles were modeled and analyzed. The accuracy of the numerical model was verified in comparison to the shaking table experiment. The earthquake ground motions were decomposed utilizing wavelet denoising and wavelet down-sampling methods up to five levels. The seismic permanent displacements and acceleration response of earth slopes under main ground motions and wavelet-based records were evaluated and compared. The analysis results indicate that the seismic behavior of earth slopes under denoising-based decomposed motions up to level 3 and down-sampling-based records up to level 1 have acceptable consistency with those subjected to main earthquakes. Accordingly, main ground motions can be substituted by wavelet-based motions in the earthquake-induced analysis of earth slopes. The results show that denoising-based records have higher precision than down-sampling-based records in evaluating earthquake-induced instability of earth slopes. Therefore, denoising-based records can be used as a more accurate alternative to main earthquakes in seismically analyzing earth slopes.</p>