Sound insulation curtain wall of green building

The utility model discloses a sound insulation curtain wall of a green building in the technical field of sound insulation curtain walls, which comprises a support frame, a mounting frame and a curtain wall main plate, the curtain wall main plate comprises a curtain wall panel and a sound insulation plate, the rear side of the curtain wall panel is provided with a flow guide structure, a first fixing block and a second fixing block, and the sound insulation plate is correspondingly connected with the first fixing block and the second fixing block. The flow guide structures are installed on the curtain wall panel, the sound insulation plate is installed on the rear side of the curtain wall panel, the cavity is formed between the sound insulation plate and the curtain wall panel, the heat insulation and heat preservation effect of the building curtain wall can be improved, meanwhile, the cavity is matched with the sound insulation plate, and the sound insulation effect of the building curtain wall is improved;