The cranial bone protects the brain tissue in our body and allows the body to function properly and efficiently. Once the skull is damaged, the body will experience a variety of adverse signs and symptoms that can seriously affect the normal activities of the body. Therefore, cranial repair surgery is an essential procedure for patients with cranial defects. Before the surgery, we all have many such doubts, because it is a matter of post-operative recovery and health of the patient, so we must be cautious. There are many types of materials used nationwide to repair the skull, each with its own advantages and disadvantages, including bone cement, plexiglass, titanium plates, silicone, autologous bone flaps, and various other types. But when it comes to the ideal repair material, polyetheretherketone material deserves to be called PEEK material, which can be customized in three dimensions and can perfectly restore the original cranial bone shape to achieve a perfect fit. In addition, this PEEK material is bionic bone, which can be highly compatible with the autologous cranial bone, capable of complex shaping, excellent mechanical properties, good protective properties, and high postoperative comfort, especially for pediatric patients, it can better adapt to the growth and development of the autologous cranial bone, and PEEK material has gradually become the new trend in cranial repair materials. The price of cranial repair is determined by the patient’s skull defect area, material size, examination cost, hospitalization cost, etc.