The utility model provides an electric control cabinet fixing support which comprises two side support bodies arranged oppositely. Each side support body comprises an upper transverse beam, a lower transverse beam and a vertical beam. The electric control cabinet fixing support is characterized in that fixing ridges are formed in the middle portions of the upper transverse beams and the middle portions of the lower transverse beams, multiple fixing teeth are arranged on the fixing ridges, and the fixing teeth are evenly distributed on the surfaces of the fixing ridges. The fixing ridges and rubber mats arranged on the support are matched with the periphery of the surface of an electric pole, the contact area is enlarged, the fixing teeth on the fixing ridges can be embedded into the surface of the electric pole when the support is fastened, an extremely firm mating surface can be formed, it is guaranteed that relative rotation and sliding cannot occur between the support and the electric pole, fixed fastening can be guaranteed, and safety of equipment on the support is guaranteed.