Rooftop greening is greening on the roof of buildings, and vertical greening is greening on the surface of various buildings, structures and other spatial structures above the ground. Rooftop greening and vertical greening is an important way to improve the ecological environment and enrich the greening landscape, which can enrich the spatial structure and aesthetic value of green landscape. Rooftop greening and vertical greening help to further increase the amount of urban green, reduce the heat island effect, absorb dust, reduce noise and harmful gases, and create or improve the ecological environment in urban areas. It can not only insulate heat and save energy, but also retain rainwater and relieve the pressure of urban sewerage and drainage.