Abstract: A new flexible hinged-frame anchoring system is developed to address the landslide risk and structural failure of traditional rigid frame anchoring structures under seismic and rainfall loads. By using the design concept of "rigid inside and flexible outside" and setting the hinge at the support connection of the traditional frame anchoring system, the new system allows for limited deformation of the slope, which can absorb some of the load through moderate energy dissipation, limit the displacement deformation of the slope, and avoid the destruction of the support itself. The calculation mechanical models of the original slope, the traditional frame anchoring slope, and the flexible hinged-frame anchoring slope are established using the Flac^3D finite difference software. The safety stability of the three slopes is evaluated by comparing the shear strain increment, sliding deformation, and tensile stress, and the instability judgment and safety factor of the three different supports are determined by the strength reduction method. The results show that the flexible hinged-frame anchoring support is very effective in controlling slope sliding. In terms of improving its own stress state, the flexible support system has significant advantages over the traditional frame anchoring system, improving the overall stability and seismic performance of the slope. This study provides a new reinforcement design idea for the field of slopes and provides a basis for the application of new support systems.