The invention provides a thermal insulation wallboard, and relates to the technical field of wallboards. The thermal insulation wallboard comprises a thermal insulation module, the thermal insulation module comprises a thermal insulation layer, a sound insulation layer and a heat conduction layer, graphite polystyrene particles are arranged in the thermal insulation layer, a fireproof layer is fixedly connected to the other side of the heat conduction layer, a heating assembly is arranged in the heat conduction layer, mounting pipes are arranged on the inner sides of two mounting holes, a second supporting plate is arranged at the other end of the outer sides of the mounting pipes, and fixing pieces are fixedly connected to the two ends of a first supporting plate and the two ends of the second supporting plate correspondingly. The thermal insulation layers, the sound insulation layers and the heat conduction layers are arranged in the thermal insulation modules, the sound insulation layers and the heat conduction layers enrich the functions of the graphite polystyrene board, the requirements for thermal insulation, sound insulation and heating of a building are met, functionality is high, the two mounting pipes penetrate through the multiple thermal insulation modules at the same time, the thermal insulation modules can be assembled into a thermal insulation wall, mounting is convenient and rapid, and time and labor are saved.