Rhinoplasty is the most common cosmetic surgery performed on Chinese people to change the height and shape of the nose to harmonize with the rest of the face by implanting appropriate materials. Because the facial features of the yellow race are such that the bridge of the nose does not stand out too much, some people will have a saddle nose deformity due to either congenital or acquired reasons – it can be a simple nasal bridge that is sunken in, and it may be accompanied by an upturned nasal tip or forward-facing nostrils. The materials used in rhinoplasty are roughly divided into two types: one is autologous tissue, such as autologous bone and autologous cartilage; the other is artificial plastic substances, most of the materials used in nasal bridge plastic surgery are silicone rubber and expanded polytetrafluoroethylene (PTFE), and most of the materials used in nasal head plastic surgery are autologous cartilage or expanded PTFE. Medical silicone due to good elasticity, easy to shape, good chemical inertia, non-toxic, non-carcinogenic, non-teratogenic, better tissue compatibility, is currently the most widely used in rhinoplasty, the effect of a better material. Polytetrafluoroethylene is resistant to high and low temperatures, chemical stability, corrosion resistance, tissue compatibility are better, non-toxic, non-carcinogenic, non-teratogenic, it is softer than silicone rubber, postoperative more natural, the tissue can be grown into the material, the long-term fixation is better. The disadvantage is that it needs intraoperative shaping, lack of hardness, poor results in supporting the nasal columella and nasal tip, the need to prevent shape change before postoperative healing, and higher prices. Before treating patients with saddle nose, two points should be clarified firstly, one is the severity of saddle nose; secondly, what kind of material is used for filling. For simple flat or depressed nasal bridge, most of them are due to congenital flat nasal bone development, the physiological function of the nose in these patients is normal, and the surgery only needs to raise the bridge of the nose, so that it can establish a good shape, in line with the aesthetic requirements. Some patients need to adjust the shape of the nasal tip and nose at the same time to achieve the overall harmony of the nasal shape. For those who have functional problems of the nose in addition to the collapsed nasal bridge, they cannot be solved by simple rhinoplasty, but must first repair the soft tissue defects of the nose, lengthen the length, and then implant a nasal stent in order to correct the deformity and restore the shape. They are advised to use autologous cartilage or autologous bone graft. Theoretically, autologous bone or autologous cartilage is preferred, but it is necessary to take bone from elsewhere, increasing trauma. Currently, medical silicone rubber is the preferred filling material with less patient pain and fewer postoperative complications.