Municipal ecological three-dimensional greening system and construction method thereof

The invention relates to the technical field of greening systems, and discloses a municipal ecological three-dimensional greening system and a construction method thereof. The support is used for being connected with a building wall, the mounting plate is hinged to one side of the support, the positioning plates are fixed to the side, away from the support, of the mounting plate, the planting pots are detachably arranged on the positioning plates, the irrigation assemblies are used for irrigating plants in the planting pots, and the support is connected with a driving assembly used for driving the mounting plate to rotate. The mounting plate can rotate to a horizontal or vertical state under the action of the driving assembly; and when the mounting plate rotates to the vertical state, the multiple positioning plates are distributed at intervals in the vertical direction. When plants are replaced, the mounting plate can be rotated to the horizontal state through the driving assembly, then the height difference