The invention discloses automatic machining equipment for a forklift supporting frame. A plurality of supporting rollers are sequentially arranged on a rotating shaft, a machining groove which extends in the direction of the rotating shaft and is used for accommodating the forklift supporting frame is formed by corresponding grooves in the surfaces of the supporting rollers, and a machining unit set mounted on a slide rail is arranged above the machining groove. In machining, the positions of machining units can be adjusted according to needs, and the gaps between the adjacent supporting rollers are adjusted according to perforating positions and the length of the supporting frame; meanwhile, in the machining process, the supporting rollers rotate to switch machining stations on the supporting rollers, so that automatic feeding, machining and discharging are achieved. The automatic machining equipment for the forklift supporting frame is simple in structure and reasonable in design, forklift supporting frames with various sizes and perforating positions can be machined according to needs, automatic machining of the supporting frame is achieved, and the machining efficiency is greatly improved.