The utility model discloses a cable assembling bending tool composed of a bending panel and a bending rack. Panels of the bending plate and the bending rack are two strip panels which are of a same length, a same width, a same thickness and which can be held by hands. One end of the panel of the bending panel and one end of the panel of the bending rack are respectively provided with wire holes. The other end of the bending panel is provided with an arc clamping groove which extends to one side. Two fixed piles, the distance between which is slightly greater than the diameter of a cable, are arranged in an upward parallel mode on the other end of the bending panel. The cable assembling bending tool of the utility model is advantaged by being simple in structure, convenient to operate, good in bending quality, and high in efficiency.