Fabricated green building roof

The utility model relates to a fabricated green building roof, and relates to the technical field of building structures, the fabricated green building roof comprises a roof plate arranged at the upper end of a wall body, a connecting plate is arranged on the side face of the roof plate, and the length extension direction of the connecting plate is consistent with the inclination direction of the roof plate; a fixing assembly used for fixing the connecting plate to the roof plate is arranged between the connecting plate and the roof plate, a plurality of connecting rods are evenly distributed on the top of the connecting plate in the length extending direction of the connecting plate, a planting groove is erected between the two opposite connecting rods on the two sides of the roof plate, and a water leakage opening is formed in the bottom of the planting groove. The drainage device has the advantages that drainage is fast, and the conditions of root rot of green plants and roof water leakage are reduced. 本申请