///Rock slope has been one of the engineering geological problems since the 1980s. It’s a non-linear and incertitude dynamic system, so the slope stability analysis and evaluation is complex, further study is needed. Based on the example of the slope near Pier 4 of Zhuchanghe grand bridge, the paper simulates the slope stability using the limit equilibrium method and the finite element method, and adopts prestressed cable anchors and anchors in slope reinforcement. The studies can also provide a reference for stability analysis of the similar slopes.