A missing piece of the skull may not seem like a big deal at first, but if it is not repaired in time, the consequences can be very serious. There are some patients in the clinic who do not realize the seriousness of skull defect and think that the skull will grow back on its own, but they end up hurting themselves physically and mentally. Firstly, if the skull defect is not repaired for a long time, the appearance will become unattractive and the patient will have low self-esteem; secondly, after the skull defect, the intracranial tissues lack a protective wall and may be attacked by the outside world at any time, which is very dangerous; thirdly, after the skull defect, the intracranial environment and intracranial pressure are changed, which will cause abnormal nerve function and induce a series of skull defect syndrome. Cranial defect cannot be taken seriously, and it is very necessary to do cranial repair surgery, so as to restore the integrity of the skull and reshape a stable and healthy intracranial environment. However, it is important to choose the repair material carefully, which is the key to the success or failure of the surgery. Nowadays, most local hospitals are using titanium mesh material, which has improved a lot compared with the earlier material, but it also has a lot of defects, a high rate of postoperative infection and some other complications. Nowadays, the ideal material for cranial repair surgery is polyetheretherketone PEEK, what is polyetheretherketone maxillofacial cranial repair material? It is a new polymer material that is safer and more advanced than titanium mesh. It is highly histocompatible, strong and flexible, resistant to strikes, and has excellent contouring effects, and is very close to autologous cranial bone. Unlike titanium mesh material, polyetheretherketone PEEK material is used in an embedded repair with a high level of comfort and more desirable postoperative results. Currently, our team has successfully used PEEK material to perform cranial repair plastic surgery for patients. After intensive research and exploration, the team has also continued to upgrade and innovate the technology and successfully introduced the concept of aesthetic plastic surgery, making the surgical results more ideal and the postoperative appearance more natural and beautiful.