The human brain is in fact very fragile, only under the strong and powerful protection of the skull, the brain can function and work normally. But accidents happen inadvertently, many people’s skull is therefore seriously traumatized, the brain has no cranial bone external protection, deep in danger, patients must pay attention to, and actively accept effective treatment. Cranial defects occur, first of all, affect the appearance of the patient’s skull; in addition, the lack of soft tissues within the skull of the hard shell of protection, it may be very vulnerable to external damage; secondly, cranial defects caused by the instability of intracranial pressure, but also affects the normal functioning of intracranial life activities. The external manifestation is that it may lead to frequent headaches, dizziness, in addition to the patient’s fear of the defective area of pulsation, expansion, collapse, and fear of the sun, fear of vibration and even fear of noisy sounds. It may also cause inattention and memory loss, and some patients show depression, fatigue, reticence as well as low self-esteem. Craniovertebral repair is a routine surgery for neurosurgery to remedy cranial defects. The main purpose of the surgery is to replace the defective cranial bone with a material similar to human autologous cranial bone, repair the bone window of the defective part, realize the integrity of the cranial bone once again, restore the airtightness of the cranial cavity, maintain the stability of physiological intracranial pressure, and alleviate the occurrence of the craniovertebral defect syndrome; through the repair of defects, the symmetry of left-right head shape and the natural and beautiful appearance will be achieved, and the patient will be improved in the appearance of natural and beautiful. The repair of the defect can achieve symmetry of the head shape and improve the patient’s inner self-confidence. In the neurosurgical guidelines, generally 2-3 months after the debridement surgery, the diameter of the defect is more than 3 centimeters, that is, it meets the surgical indications, and the patient needs to be repaired in a timely manner. Although cranial bone repair belongs to the routine neurosurgery, it is recommended to go to a large public hospital for surgery. It is reported that at present, many hospitals generally carry out titanium mesh cranial bone repair, selected titanium mesh as a cranial bone implantation material, but because of the implantation of titanium as a metal material and the use of cover-type repair, there are many postoperative complications such as the rate of rejection and infection, wear and tear of the skin material exposed. Currently, a new type of polymer PEEK material is used as the implantation material for cranial bone repair, which greatly reduces the rate of postoperative rejection and infection; at the same time, it adopts the embedded repair method, which effectively avoids the phenomenon of skin abrasion and ulceration caused by the traditional titanium mesh covering repair, and the exposure of the material, etc.; in addition, the innovative introduction of the concept of plastic surgery is combined with the unique design of the mesh pore aperture and the unique tissue separation and reset technology during the operation, which effectively avoids the temporal muscle atrophy. In addition, the innovative introduction of plastic concepts, combined with the unique design of the mesh aperture and the unique tissue separation and restoration technology during the operation, effectively avoids the temporal muscle atrophy, ensures the activity of each tissue, ensures the symmetry of the head after the operation, and achieves the purpose of natural and beautiful appearance.