The invention discloses an electric power overhauling tool which comprises a herringbone ladder, an operating platform, a fixing device used for fixing the herringbone ladder, and a protection device for preventing an operator from accidentally sliding down, wherein the operating platform, the fixing device and the protection device are arranged on the herringbone ladder; a tool kit and barrier cloth used for keeping out of the sun or rain are arranged on the operating platform. According to the invention, the fixing device is used for fixing the herringbone ladder, a special ladder is not needed, and manual labor is saved, so that the herringbone ladder is reliably fixed. According to the operating platform, tools can be placed on the operating platform by an operator, overhauling operation can be performed on the operating platform, and the overhauling operation of the operator is conveniently realized. According to the protection device, the operator is prevented from accidentally sliding down during overhauling, and the overhauling safety is improved. According to the barrier cloth, the operator can be prevented from being exposed to the sun and rain during field overhauling, the operating environment is optimized, and the labor injuries of the operator can be reduced.