Abstract: By analyzing the geological conditions and flow conditions of the discharge sluice downstream of a water conservancy hub project, a concrete vertical wall in the end of the sea flood tooth of the discharge sluice downstream was set up in order to increase the safe use of the water conservancy on the basis of impingement feasible scheme of energy dissipation under the brake, and was extended to the bottom of the tailrace of the adjacent power plant. The embedded depth and structure design of the concrete vertical wall were investigated, the construction measures and quality control of the anti-scouring wall were also proposed according to regulatory requirements