The invention discloses a composite breakdown resisting power cable characterized by comprising a conductor, wherein an outer side of the conductor is provided with a first conductor shielding layer, an outer side of the first conductor shielding layer is provided with an insulation layer, an outer side of the insulation layer is provided with a second conductor shielding layer, an outer layer of the second conductor shielding layer is wrapped with a protection layer, the conductor is a copper conductor, and the first conductor shielding layer and the second conductor shielding layer are made of shielding material of nanometer level lead metal compounds. The power cable disclosed in the invention is strong in breakdown resisting capability.