Energy-saving prefabricated wallboard convenient to disassemble

The utility model relates to an energy-saving prefabricated wallboard convenient to disassemble, which belongs to the technical field of prefabricated wallboards and is provided with a limit block, a bearing block and a bolt, the limit block is of an inverted U-shaped structure, one end of the limit block is fixed at one end of a wallboard body, and the other end of the limit block is provided with a horizontal threaded hole matched with the bolt. The bolts penetrate through the threaded holes to abut against the bearing blocks, the adjacent wallboard bodies are fixedly connected through interaction of the limiting blocks, the bearing blocks and the bolts, connection of the adjacent wallboard bodies is achieved, abutting and separation of the limiting blocks and the bearing blocks are achieved through rotation of the bolts, and splicing and dismounting of the adjacent prefabricated wallboards are achieved. According to the structure, the prefabricated wallboards do not need to be spliced, only the limiting bl