Overhead planting module and modular overhead planting unit for roof greening

The utility model provides an overhead planting module and a modularized overhead planting unit for roof greening, and relates to the technical field of buildings. The overhead planting module comprises a prefabricated box body, a honeycomb drainage groove, planting soil and a drainage pipe, the prefabricated box body is provided with a planting space and a mounting groove communicated with the planting space, and the honeycomb drainage groove is formed in the bottom in the planting space; the planting soil is arranged in the planting space and located on the honeycomb drainage grooves. The drainage pipe is mounted in the mounting groove, is communicated with the honeycomb drainage groove and is used for draining water in the planting space. The modular overhead planting unit for roof greening comprises at least one overhead planting module. The utility model has the characteristics of high production efficiency and simple construction, and can save building materials and labor cost. Meanwhile, the modular de