In slope engineering, construction and building of vertical high slope is a difficult construction, along with the development of economy, more and more high slope construction area. Coastal city of Dalian Business Economics Training Center and surrounding land south of the retaining wall reconstruction project engineering，this project is an earth and strongly weathered rock vertical high slope，the slope of the maximum depth of 11.2 m，paragraph using situ reinforced concrete retaining wall construction. The process of excavation and support occurred one collapse accident，this article discusses the specific treatment measures，and with a specific project as an example，proposed the new construction technology top-down method assembly type anchor retaining wall, In the assembly of different kinds of block as a retaining wall, and set the pre-stressed reinforcement, the top-down construction gradually from top to bottom, bottom retaining wall and beam integrally using cast-in-place reinforced concrete, improve the overall stability. The method to reduce the project risk, accelerate the construction speed, to erect high slope construction provides a reference method.