Building thermal insulation wallboard

The utility model relates to the technical field of building supplies, and discloses a building heat preservation wallboard which comprises a connecting frame, and a wallboard body is installed in the connecting frame. The connecting frame is mounted on the surface of the wallboard body, the limiting block is mounted on one side passing through the connecting frame, the limiting groove is formed in the other side of the connecting frame, the clamping block is mounted at the bottom of the connecting frame, and the clamping groove is formed in the top of the connecting frame, so that two same heat insulation boards can be mutually spliced; the wallboard body is composed of the fireproof layer, the waterproof layer, the sound insulation layer, the adsorption layer and the wear-resistant layer, so that the wallboard has the functions of fire prevention, water prevention, sound insulation, shock absorption, peculiar smell adsorption and wear resistance, and the safety of the thermal insulation wallboard in use is