The invention discloses an insulation arm crane. The insulation arm crane comprises a headstock, wheels, a crane body which is composed of a frame, and an insulation arm with three sections which are nested and flexible, wherein the front end of the insulation arm is provided with an insulation hook; the two sides of the frame are provided with elastic hydraulic legs, a platform of the frame is provided with a rotary table which is connected with the platform through a swing mechanism and is hinged with an insulation arm support, the insulation arm is arranged on the rotary table through the insulation arm support and is driven through an oil cylinder on the rotary table to swing between the vertical direction and the horizontal direction, and the frame is also provided with an insulation working hopper which enables a worker to operate. The insulation arm crane provided by the invention has the advantages that the withstand voltage of the whole crane can reach 220kv, the strength and the bending strength of an arm body are high, the running speed is high, the repairing operation efficiency is high, the unfolding of the hydraulic legs is rapid, the floor space is small, the support is stable, and as the frame is provided with the insulation working hopper which is rapidly assembled and disassembled, the insulation arm crane has large carrying capacity and working height and can meet high altitude operation requirements.