The invention belongs to the technical field of power grid equipment, and provides a brazing copper aluminum transitional jointing clamp. The brazing copper aluminum transitional jointing clamp comprises a wire compression joint part; the wire compression joint part comprises a hollow part and a solid part; the hollow part is in a hollow tubular structure with an opening in one end for compress jointing the wire; one end of the solid part is connected with the hollow part while the other end of the solid part is connected with a wiring board; a copper aluminum transitional sheet is brazed on the wiring board; an opening is formed in the pipe wall, in the opening end, of the hollow part; and holes are formed in the pipe wall, in the connecting place between the hollow part and the solid part, of the hollow part. According to the brazing copper aluminum transitional jointing clamp, the holes are formed in the pipe wall, in the connecting place between the hollow part and the solid part, of the hollow part, so that the operation of replacing cable clamps is more convenient, the operation time is saved and the cost is reduced; meanwhile, the opening is formed in the pipe wall, in the opening end, of the hollow part of the wire compression joint part, so that the operation time is further shortened, and the cost is reduced.