The invention belongs to the technical field of welding robots, and particularly relates to a control box base capable of efficiently cooling for a welding robot, which comprises a base and a welding robot, a control box and a cooling box are mounted at the top of the base, a controller is embedded in the outer side of the control box, and the cooling box is communicated with the control box; the welding robot is rotatably mounted at the top of the control box, a semiconductor refrigerator is embedded in the top of the cooling box, a power mechanism is arranged on the cooling box, a fan is connected to the power mechanism, a uniform air guide mechanism is connected to the power mechanism, the uniform air guide mechanism extends into the control box, and a dustproof mechanism is connected to the power mechanism; and the semiconductor refrigerator is used for refrigerating air, and the power mechanism comprises a servo motor and a power shaft. The control box base is convenient to operate, cooling and heat dissipation are facilitated, air can be refrigerated, the heat dissipation effect can be improved, air can be evenly guided, heat dissipation can be achieved, dust prevention and dust screen cleaning can be achieved, and the heat dissipation difficulty is reduced.