The initial function of the 3D vegetation net is to facilitate vegetation growth. As vegetation forms, its main function is to help grassroots systems enhance their resistance to natural soil erosion. Three-dimensional vegetation net slope protection has the following main characteristics: 1. Due to the effect of the net bag, it can reduce the impact energy of raindrops, the surface of the vegetation net is uneven, can cause wind and water to form a small vortex on its surface, play a buffer and dissipation effect, reduce the flow rate, so as to effectively resist the washing of rain; 2, the filling in the net bag (soil particles, nutrient soil, grass seeds, etc.) can be well fixed to reduce the amount of rain washed away Loss; 3. It plays the role of reinforcement and reinforcement in the surface soil of the slope, so as to effectively prevent the slippage of the surface soil; 4, the three-dimensional vegetation net helps the uniform growth of vegetation, the root system of the vegetation is easy to grow and fix in the slope soil layer; 5, the three-dimensional vegetation net can be made into a grass carpet for offsite transplantation, which can solve the vegetation requirements that require rapid protection projects.