Compared with the prosthetic material, the nasal septum cartilage is taken from a part of the patient's own tissue, which can effectively avoid tissue rejection and has higher safety; When nasal columella lengthening surgery is performed, nasal septum cartilage surgery can be performed at the same time, and other parts of the body do not need surgery, which is conducive to reducing trauma and shortening recovery period; The shaping and fixation of nasal septal cartilage is more convenient and the supporting effect is obvious. In addition, the texture is harder and easier to shape, and the postoperative effect and feel are better.