Greening device for house building

The invention provides a house building greening device, and relates to the technical field of buildings. The house building greening device comprises two parallel side frames, first sliding grooves are formed in the sides, facing each other, of the two side frames, first sliding blocks are slidably connected to the interiors of the first sliding grooves, and the sides, extending out of the first sliding grooves, of the first sliding blocks are in threaded connection with second screw rods; first nuts are arranged on the outer side faces of the second screws correspondingly, and the ends, away from the first sliding blocks, of the second screws are fixedly connected with guide frames correspondingly. Third sliding grooves are formed in the sides, facing each other, of the two guide frames. The planting connecting units are connected through the connecting pieces and the connecting discs, the planting connecting units can be fixed to the surface of a house through the fixing holes of the connecting discs by us