To provide a heating conductor for a high frequency heating device, which can perform excellent hardening of a heating target having an irregular surface and can be easily manufactured.

In a heating conductor 3 for a high frequency heating device 1 performing high frequency induction heating of a heating target 4, the heating conductor 3 has a plurality of curved pieces 9a-9c and the curved pieces 9a-9c are arcuate having the same radius with one another. The center of the arc of each of the curved pieces 9a-9c are arranged on the same straight line L and the curved pieces 9a-9c are linked to create a stepwise linkage.