Patients should clearly understand that the choice of material for cranial bone repair is very critical, and currently the metal titanium mesh is widely used in clinical practice. For the defective skull, now generally use titanium alloy patch repair, but there are more shortcomings and complications, such as hot and cold reaction sensitivity, local chronic pain, more subcutaneous effusion, after repair, affecting the patient to accept CT, MRI and other medical examinations, chronic cutting ulcers, stress perforation caused by the failure of cranial bone repair, the temporal fossa, the zygomatic arch, eyebrow orbital irregularities in the cranial part of the repair of the appearance of the cosmetic effect of the lack of good, and so on. Therefore, it is recommended to use the current new polyether ether ketone PEEK material, which is an advanced cranial bone repair material that can be customized in three dimensions according to the degree of the patient’s cranial defect. Moreover, PEEK material is bionic bone, which is highly compatible with autologous bone, and has comparable performance with autologous skull in terms of elasticity, conductivity, stability and hardness. Currently, the PEEK cranial bone repair material used in our hospital is a suitable cranial bone repair material recognized by the medical profession nowadays.PEEK is a polyether ether ketone polymer biomaterial, which is sometimes highly compatible with autologous cranial bone, and the PEEK ancient plate shaped with 3D technology can achieve perfect seamless combination with cranial bone, and its stability and hardness are comparable with human cranial bone. So far, no cases of rejection reaction have been found, and there is no impact on medical imaging, making it an ideal choice for the majority of patients with cranial bone damage. Warm reminder: It is recommended that patients choose to repair the cranium when repairing the cranium with the autologous cranial bone equivalent repair material, which is also helpful to the body. Patients should go to regular hospitals for treatment as soon as possible to restore their health as soon as possible.