Abstract：The main work of a project is the state key one. The rock slope is unstable during the construction process and threatens the safety of lower structures and workers. According to the environment and the concrete geological conditions，the comprehensive reinforcement method of prestressed anchor cable，self-drilling anchor bolt，steel-net and shotcrete is adopted for the slope using the engineering analogism and experiential method. Rational design parameters，reasonable reinforcement structure form and scientific construction process ensure the reinforcement measures to play roles fully. Based on the crack location surveyed during drilling hole and slope limit equilibrium theory，the mechanical parameters of rock are obtained by inverse calculation method. Then the safety factor of the reinforced slope is gained. Results show that the safety factor increases largely，which ensures the safety and the subsequent construction. The design and construction of the reinforced rock slope are introduced in detail.
