To provide a wire rope in which twisting wires to be twisted on the periphery of core wires can easily be wound in spiral states and a core material can be formed into a specified shape without collapsing its outer shape.

This wire rope has a core material 1 prepared by twisting plural twisting wires 4 on the periphery of three core wires 3, which have been treated by waving processes in advance. In the wire rope, supplementary core wires 5 having smaller diameters than the outer diameter of the core wire 3 are arranged on the periphery of the core wires 3 and at the boundaries between adjacent core wires, and then the twisting wires 4 are twisted on the periphery of the resultant core consisting of the core wires 3 and the supplementary core wires 5.