The utility model relates to the technical field of building decoration, in particular to a fireproof environment-friendly curtain box mounting structure which comprises a building floor, a rear steel plate, a corner connector and a hanging rod are fixed to the bottom face of the building floor through expansion bolts, a vertical
steel frame is vertically fixed to the rear steel plate, an inclined
steel frame is obliquely fixed to the corner connector, and the hanging rod is fixedly connected with the rear steel plate. Galvanized
steel plates are fixed to the bottom face of the transverse
steel frame and the side face of the vertical steel frame. A large crane is fixed to the bottom of the suspender, a main
keel is installed in the large crane in a penetrating mode, a secondary
keel is fixed to the bottom of the main
keel, and
gypsum boards are fixed to the galvanized
steel plates and the secondary keel. A curtain box is mounted on the
gypsum board connected with the bottom surface of the transverse steel frame; no wood base plate is adopted, the
formaldehyde content is low, the fireproof function is effectively achieved, meanwhile, the curtain box is more
environmentally friendly, the environment-friendly and fireproof requirements are met, deformation is not prone to occurring, installation is convenient, and the visual effect of the curtain box is improved.