Environment-friendly composite board for decoration

The utility model relates to the technical field of environment-friendly plates. The invention relates to a composite board, in particular to an environment-friendly decorative composite board. Including a glass layer, a flame-retardant layer is compounded on the upper end surface of the glass layer; a metal layer is compounded on the upper end surface of the flame-retardant layer through a firstadhesive layer; a sound insulation layer is compounded on the upper end surface of the metal layer through a second adhesive layer; the upper end face of the sound insulation layer is plated with an alloy plating layer. And a plurality of fixing columns are compounded on the upper end face of the flame-retardant layer, the top ends of the multiple fixing columns penetrate through the metal layer and extend into the second adhesive layer, fixing circular truncated cones are welded to the top ends of the multiple fixing columns, and the top ends of the multiple fixing circular truncated cones penetrate through the botto