The type of cranial repair material used is very important in skull repair. The choice of material first requires high biocompatibility, and needs to ensure a certain strength and stiffness at the same time to provide strong enough protection, but also to meet the needs of shaping, to achieve the shape of the repair cosmetically satisfactory results. The main cranial repair materials currently in clinical use are traditional titanium alloy materials and new polyether ether ketone PEEK materials, of which PEEK cranial materials have superior performance and better repair results. The cost of polyetheretherketone PEEK materials is somewhat higher than traditional titanium mesh materials, but the performance is much better. Although the traditional titanium mesh material is widely used, but its performance is not very ideal, clinical use also often have a variety of defects and problems, not lack of postoperative failure cases, such as postoperative infection, rejection, wear and tear scalp, resulting in scalp damage, material exposure, affecting the CT nuclear magnetic examination, force collapse deformation, sensitive to the external hot and cold environment, discomfort, poor shaping effect, etc.. The new peek cranial material, performance is much better, PEEK material in hardness, stiffness, strength, thermal insulation, stability, tissue compatibility, radiation transmission and other aspects of almost equivalent to the autologous cranial bone, can effectively avoid the above-mentioned problems that may arise from titanium mesh material. Moreover, the material is designed by 3D reconstruction and produced by 3D printing technology, which can highly restore the skull structure and achieve ideal restorative effect with high aesthetic shape. Currently our team is widely applying this advanced polyetheretherketone PEEK material, and the team is constantly improving and upgrading the technology and optimizing the design of the material, and introducing the concept of cosmetic plastic surgery to cosmetically shape the factors that affect the appearance to achieve the overall unity of anatomical integrity, functional perfection, and aesthetic appearance, achieving good clinical results.