A 220KV power transmission line cat-head type tower double crane lifting device comprises a base, the base is vertically provided with a first hydraulic oil cylinder, the upper end of the first hydraulic oil cylinder is provided with a beam, the beam is horizontally arranged, a right and left pass-through slideway is horizontally arranged in the beam, the cross-section of the slideway is a rectangular structure, two telescopic lifting mechanisms are horizontally slidably arranged in the slideway, and the two telescopic lifting mechanisms are symmetric in relative to the first hydraulic oil cylinder. All components are made from aluminum alloy materials, and are light and flexible, two lifting points can regulate horizontally the length, and the 220KV power transmission line cat-head type tower double crane lifting device is suitable for all 220KV power transmission line cat-head type towers. Through use of two lifting points for simultaneous lifting, the equilibrium problem of the lifting process can be solved, the work efficiency is greatly improved, and the 220KV power transmission line cat-head type tower double crane lifting device is strong in practicality, and easy in popularization and application.