In order to study the effect of different positions and quantities of tension bands on the stability of geocell retaining wall upder earthquake action, a numerical model of geocellular retaining wall supporting slope was established with the help of FLAC^3D software, and the results of shaking table test were used to verify the numerical model. The calibrated numerical model was used to systematically study the influence of different positions and quantities of tensile strip on the dynamic response of slope. The results show that under different layout schemes, the confining pressure presents a two-stage pattern of “increase-decrease”along the wall height. The displacement distribution pattern along the wall height varies with the location of the stretching belt. The horizontal peak acceleration presents a three-stage pattern of “increase-decrease-increase” along the wall height, and the maximum value appears at the top of the slope. From the slope shoulder to the depth of the slope, the settlement of the slope top increases first and then decreases in a“V”shape, and the maximum value appears at the junction of the wall and the slope. When two, three and four layers of reinforcement tape are laid, the optimal positions are (H/3, H), (0, H/3,H), (0, H/3,3H/4, H)； The plastic zone of the slope increases with the increase of the number of reinforcement zones, but the permanent horizontal displacement of the wall, the horizontal peak acceleration and the settlement of the slope top decrease gradually. The constrained confining pressure and horizontal peak acceleration of the cell at the position of the reinforcement strip increase first and then decrease from the wall to the slope. The maximum value appears at the junction of the wall and slope, and the acceleration of the wall is less than that of the wall. The cell and its packing have a certain attenuation effect on the propagation of acceleration. The results can be used to guide the seismic design of geocell flexible retaining wall under earthquake.