The utility model discloses an insulating power cable, including conductor, conductor?shield and oil -paper, conductor, conductor?shield and oil -paper set up to outer from interior in proper order, the conductor is equipped with more than one, the oil -paper is fan -shaped setting, the oil -paper is equipped with three, be provided with the filler between the oil -paper, the filler is made by active carbon and cotton fiber dimension, the oil -paper outside is provided with all oily plys of package, all the oily ply of the package outside has set gradually insulation screen, lead sheath, bed course, steel wire armouring and oversheath, insulation screen, lead sheath and bed course glue the connection in proper order, the oversheath is the polyvinyl chloride oversheath, is oversheath thickness 3 4mm, this insulating power cable is insulating effectual, and it is effectual to transmit power, long service life, structural stability is good.