Three-dimensional greening system

The invention relates to the technical field of landscaping, in particular to a three-dimensional greening system which is used for cooling and protecting plants, especially roots in hot weather, keeping the activity of the whole plants and avoiding death of the plants. Comprising a frame, planting racks and planting pots, the multiple planting frames are vertically and rotatably installed on the frame, the multiple heat absorption outer boxes wrap the outer walls of the multiple planting pots respectively, the air bag is installed on the frame, the multiple heat absorption outer boxes are communicated with the air bag through the multiple hoses, the multiple heat absorption outer boxes are filled with liquid easy to evaporate, and the liquid is filled with liquid easy to evaporate. The liquid absorbs heat and evaporates to cool the planting pots, the liquid is evaporated into gas and then is inflated into the air bags through the hoses, the sun shield is installed on the frame in a liftable mode, the shadow