The invention provides a climbing wall type robot operating in a narrow space. Electromagnetic tracks are symmetrically arranged on two wings of the lower portion of a climbing wall type robot body and are vertically adsorbed on the inner wall of the narrow space, and the upper portion of the climbing wall type robot body is provided with a multifunctional mechanism arm for insulation repairing, component fastening and winding reset. The electromagnetic tracks can also be large-density suckers adsorbed on the inner wall of the narrow space. The electromagnetic tracks or the large-density suckers are adsorbed on the inner wall of the narrow space of a transformer, tasks difficult to finish manually can be finished by combination of the carried multifunctional mechanical arm matched with different tools, the interior of the transformer is subjected to insulation repairing, component fastening and winding reset, and the problem that personnel cannot enter the narrow space for operation issolved. The climbing wall type robot operating in the narrow space is suitable for being used in the field of climbing wall type robots operating in narrow spaces.