The importance of the skull is self-evident to everyone, it has an important role to play in our body, we are under the protection of the skull, the brain tissue can function normally. However, many people in our lives have cranial defects due to various reasons, which seriously affects the aesthetics, not to mention that it is also a kind of harm to their physical health. That is why cranial defects are a big problem, and patients must pay attention to them. After cranial defects, it is necessary to carry out cranial repair in time, and through cranial repair surgery, restore the integrity of the skull to avoid bigger problems from occurring. Then there are often patients who are worried and ask if the cranial bone repair will have an effect on the human body when encountering hot and cold weather after the cranial bone repair. This has to do with the materials used for cranial bone repair. At present most of the hospitals in the clinical widely used cranial bone repair material is titanium alloy titanium mesh material, this metal material thermal insulation is not good, the outside world, hot and cold environment, may directly affect the temperature of this material, which affects the temperature of the intracranial environment, but also produces a lot of discomfort; at the same time titanium mesh material there are also some other problems, such as postoperative infection and rejection, deformation of force, wear and tear of the scalp, resulting in the exposure of the material, affecting ct and the ct. The titanium mesh material also has some other problems, such as postoperative infection and rejection, deformation under force, wear and tear of the scalp, causing the material to be exposed, affecting the ct magnetic examination, etc. Obviously, there are many contraindications to using titanium mesh material for skull repair surgery, and there are also many defects. Therefore, the use of titanium mesh material for cranial bone repair surgery is no longer advocated. At present, there has also been a new type of material can be used, the material is polyether ether ketone – PEEK material, PEEK material has the advantages of high temperature resistance, corrosion resistance, ray transmittable, can be complex molding, and can be very good to avoid the complications that exist in titanium mesh and other materials after the operation, so that many patients can be better in the post-operation Recovery. And constantly improve and upgrade technology, material optimization design, and the introduction of cosmetic surgery concept. Thus, the comprehensive peek cranioplasty can not only complete a good cranial repair, but also do a good job in ensuring the activity of the tissues, guaranteeing the integrity of the nerve function and the proportionality of the cranial shape, so as to achieve the overall unity of the anatomical integrity, functional perfection and aesthetic appearance.