Abstract: Disclosed are a method for bending a self-regulating cable having a function of maintaining a predetermined temperature by applied electric power, in which the self-regulating cable is arranged in zigzags by easily bending the self-regulating cable, and a heating mat for preventing overheating using the same. A heating mat comprises: a heat generating means for maintaining a predetermined temperature with applied electric power; a control unit electrically connected to the heat generating means, for regulating the electric power supplied to the heat generating means; and an exterior material surrounding the heat generating means. The method comprises: setting a bent portion of the self-regulating cable; exposing the semi-conductive polymer by removing a portion of the insulation film, which corresponds to the bent portion; exposing a pair of wires by removing the exposed semi-conductor polymer; and bending portion of the pair of wires, which correspond to the exposed bent portion.