The invention discloses a method and a structure for making a composite wall by using stone columns and stone slabs as main bodies. The invention is characterized in that: the stone columns are made of stones so as to form supporting members of a house; two grooves are formed on side surfaces of the stone columns; an external wall panel and an internal wall panel are respectively inserted into the grooves; a thermal insulation layer is arranged between the external wall panel and the internal wall panel; and an external wall is formed between the stone columns. A connecting steel plate is easy to process, is convenient to use, and easily realizes the connection and positioning of the stone supporting members. The lengths of the adopted fixed steel bars are different, the height difference can be formed, and the impact force to the same fracture surface is dispersed when the stones are stressed. The fixed steel bars are arranged in triangles, the structure is stable, the fixed steel bars and the connecting steel plate form a group of tensile stress structure systems, and the system can bear the impact, push-and-pull and torsion in each direction. The stress is centralized and balanced, the durability and safety of stone buildings can be kept, and the seismic resistance is improved.