A shape cutting device for a carrying pole beam is composed of a bottom plate (1), outer guide rails (2), the carrying pole beam (3), material blocking plates (4), inner guide rails (5), carrying pole beam supporting blocks (6), a cutting torch (7) and a moving trolley (8). The bottom plate (1) is of a U-shaped structure, the outer guide rails (2) and the inner guide rails (5) are arranged on the U-shaped structure and separated by the material blocking plates (4), and the carrying pole beam is arranged on the carrying pole beam supporting blocks (6). The shape cutting device is characterized in that the cutting torch (7) is arranged on the moving trolley (8), the moving trolley (8) moves along the outer guide rails (2) and the inner guide rails (5), and the cutting torch (7) carries out shape cutting on the carrying pole beam. The shape cutting device for the carrying pole beam saves time, is high in speed and adjustable in height, and guarantees one-time forming of grooves after the carrying pole beam is cut, dimension consistency is good, and work efficiency is improved twice or more.