The invention discloses an insulating soft ladder used for electric power cable overhaul, and belongs to the technical field of electric power cable overhaul. The insulating soft ladder comprises twocable ropes and a plurality of pedals fixed between the cable ropes; two hanging heads are fixed at the top ends of the two cable ropes respectively; each hanging head comprises an inverted U-shaped hook and a pulley arranged in the inverted U-shaped hook; and a brake apparatus is arranged beside the hanging head. The brake apparatus is arranged on the insulating soft ladder, and the brake apparatus can be operated by an overhaul staff by adopting a pulling rope; and the insulating soft ladder is simple in structure, safe and practical, and long in service life.