If remedial measures are not taken in time after cranial defects, not only the face value is greatly discounted, but also can lead to the instability of intracranial pressure, cerebrospinal fluid circulation, blood circulation, and various neurological functions can not operate normally, and some patients are accompanied by dizziness and headache symptoms. Therefore, early cranial bone repair surgery has many benefits to the appearance and all aspects of the body. Before doing skull repair surgery, the main thing is that the part of the patient to be repaired, the brain tissue should not be too swollen, if the repair part of the brain tissue is too swollen, it will affect the placement of the repair material, compression to the local brain tissue, so it must be assessed by a professional doctor whether it is suitable for cranial bone repair. Before doing cranial bone repair surgery, patients need to do cranial CT thin-layer scanning as well as three-dimensional reconstruction, suitable for the patient’s defective bone, which needs to be used for artificial materials, according to the results of cranial CT thin-layer scanning, to do the three-dimensional repair materials suitable for the patient himself. In addition, before doing the cranial bone repair surgery, you also need to do the routine preoperative examination, including cardiopulmonary function, liver and kidney function, etc., in order to see whether the patient can adapt to the surgery and anesthesia requirements. The more important point is the choice of cranial bone repair materials, the more advanced cranial bone repair materials to be counted polyether ether ketone peek material, which is a new type of special polymer materials, applied in the cranial bone repair surgery, the effect is very ideal. Polyether ether ketone material, its various properties and human autologous skull are very close: high hardness, not afraid of external impact, will not be deformed and collapse; good tissue compatibility, generally will not be infected with the phenomenon of xenobiosis; strong thermal insulation, will not be affected by the outside world of the influence of the environment of hot and cold and the occurrence of sensitive discomfort; in addition, this material will not affect the patient to accept ct nuclear magnetic examination; this material is a three-dimensional molding, according to the patient’s Personalized three-dimensional design according to the patient’s cranial structure, can highly restore the skull structure, tightly repair the defective area; this material is embedded repair, repair the surface of the smooth articulation, will not produce wear and tear on the scalp. So polyether ether ketone peek material because of its excellent performance, has now become the new trend of cranial bone repair materials, recognized by neurosurgeons and patients.