Abstract: To investigate the seismic performance and dynamic response mechanism of warp-faced reinforced loess slopes, this paper systematically studies the dynamic response of slopes under horizontal seismic action based on shaking table model tests. The test uses the loess from a certain project in Shanxi as the filling material and builds a wrap-faced geosynthetic reinforced model slope with a geometric similarity ratio of 1 : 10. The seismic performance was analyzed by inputting El-Centro seismic waves of different magnitude. The research found that the warp-faced reinforced structure inhibited the deformation and instability of the slope under earthquake. The acceleration response showed a nonlinear amplification along the slope height, with the amplification effect being most significant in the top area of the slope. The PGA amplification factor first increases and then decreases with the increase of earthquake magnitude. The distribution of horizontal dynamic earth pressure exhibited a"middle large, double peak" characteristic. The peak earth pressure increased with the increase of earthquake magnitude, while the earth pressure at the top of the slope decreased due to the development of cracks. Slope surface displacement develops with the increase of earthquake magnitude, but the overall deformation rate of the slope maintained a relatively low level. The maximum strain of each layer of geotextile is located near the middle of the geotextile, with the middle layers bearing the main load and showing the most significant strain changes. This study expands the research on reinforced soil slopes with loess as filler, providing a reference for related projects.