Patients must follow the doctor’s instructions for postoperative care. In addition, the cranial repair surgical materials chosen for cranial repair are also important, and the doctor will diagnose and treat the patient’s condition based on the results of the nuclear magnetic examination. Cranial bone damage is a common accidental disease. In the brain neurosurgery department, there are few patients who need to repair the damaged skull bone. Cranial repair is now a relatively routine and constant procedure and is not as risky as many patients think. Cranial repair surgery itself does not involve brain tissue, so patients who are concerned about complications due to brain tissue infection or damage to the brain tissue should not worry. As long as the surgery is performed in a regular hospital, there will be no after-effects of improper operation. Cranial repair surgery is not complicated. Before the operation, the doctor will shape the repair material selected by the patient according to the results of the nuclear magnetic examination, which is also an important preoperative preparation. If the patient’s physical condition permits, the doctor will cut the scalp in a suitable position according to the damaged part, shape and size of the skull, and bluntly separate the periosteum. The exposed bone window can be clearly seen after stopping the bleeding in the operation field. The surgeon adjusts the shape of the preoperative 3D plasticized bone plate repair piece according to the physiological structure of the damaged area, fixes and resets it, and then sutures the scalp layer by layer. A successful cranial bone repair is thus completed. Currently the ideal material to do skull repair is PEEk, polyether ether ketone PEEK material, which can achieve the ideal repair effect. This PEEK polymer material is gradually becoming a new trend in cranial bone repair materials due to the material’s biocompatibility, ability to complex molding, excellent mechanical properties, good protective properties, and high postoperative comfort.