The present invention relates to a greening installation structure for a retaining wall and, more specifically, to a greening installation structure for a retaining wall, which enables greening on a retaining wall in a narrow installation space by having excellent space usability and simple composition and can reduce construction costs and maintenance costs as the greening installation structure are conveniently constructed and maintained. The greening installation structure for a retaining wall is environmentally friendly. According to the present invention, the greening installation structure for a retaining wall enables the greening on the retaining wall in the narrow installation space by having the excellent space usability by having a vegetation space on the ground while having the simple composition. The greening installation structure for a retaining wall can reduce the construction costs and the maintenance costs by being conveniently maintained as a plant grows well by the vegetation space formed on the ground. The greening installation structure for a retaining wall has an environmentally friendly effect as there is no structure protruding from the ground to the outside after installation. The greening installation structure for a retaining wall includes a vegetation bed unit, a first support angle, a supporter, a second support angle, a panel, and a support net.본 발명은 옹벽 녹화 설치구조에 관한 것으로서, 보다 상세하게는 간단한 구성을 가지면서도 공간 활용도가 우수하여 설치공간이 협소한 곳의 옹벽에 대한 녹화를 가능하게 하고, 시공 및 유지관리가 특히 편리하여 시공단가 및 유지보수 비용을 절감할 수 있으며, 자연 친화적인 옹벽 녹화 설치구조에 관한 것이다.본 발명에 의하면, 간단한 구성을 가지면서도 지면에 식생공간을 형성하게 되므로 공간 활용도가 우수하여 설치공간이 협소한 곳의 옹벽에 대한 녹화를 가능하게 하고, 지면에 형성된 식생공간으로 인해 식물의 성장이 우수하여 유지관리가 특히 편리하여 시공단가 및 유지보수 비용을 절감할 수 있으며, 설치 후 지면에는 외부로 돌출되는 구조물이 없어 자연 친화적인 효과를 나타낸다.