The utility model provides a cable support frame, which comprises a base, a vertical beam and a bus groove, wherein the vertical beam is fixedly arranged on the base, the bus groove is fixedly formed in the top of the vertical beam, a pair of parallel side walls are arranged under the base, and a rectangular groove with a downward opening is formed between the parallel side walls and the base. The cable support frame provided by the utility model is adopted and is directly supported on an original cement support frame. Compared with the original support frame, the cable support frame has the advantages that the height is reduced by about a half, and the material consumption is saved by about a half. Because the height is reduced, and the base is directly clamped on a cross beam of the cement support frame, the firmness of the support frame is improved. The cable support frame has the advantages that the structure is simple, the cost is low, the use is convenient, and the work intensity and the operation time of operators are reduced.