The skull is one of the hardest bones in the human body and plays an important role in protecting the brain tissue inside the skull and maintaining the intracranial environment. If an accident occurs that results in a cranial defect, then cranial repair should be performed in a timely manner. Many patients with cranial damage ask, can’t the skull be repaired without cranial repair? There is no cranial protection of brain tissue, even without the stimulation of external conditions, the human body’s own scalp, hair will be directly spread, contact, cover the brain tissue, brain tissue for a long time with the change of position and displacement, resulting in changes in the blood circulation of the brain, or due to the adhesion of the scalp and the dura mater displacement, so that the subarachnoid space disappeared, the cerebral cortical perfusion is reduced, and the softening foci of the brain tissue under the window of the bone increased, and traumatic cysts can be formed , brain penetrating deformity, ventricular asymmetry and so on. The most direct manifestation is the patient’s headache and dizziness, fear of the sun and fear of noise, not only have psychological shadows such as low self-esteem and depression, but also may cause memory loss and inattention. Therefore, cranial repair is not only for the aesthetic appearance of the patient’s head, but also for the patient’s life and health. At present, we use PEEK cranial bone repair, the use of the highest affinity and human bone bionic material, three-dimensional reconstruction of highly restored cranial structure, to achieve the damaged parts and the original bone window beautifully fit, but also to accelerate the development of the bone healing, it is worthy of the patient’s favor of the best repair materials.