When the skull bone is defective, it is obvious that the patient’s appearance will be seriously damaged, some will be collapsed, some will be bulging, no matter which one, it will make the patient become unconfident and have a deep sense of inferiority; in addition, without the protection of the skull bone, the brain tissue will be easily damaged, and it will easily lead to the cerebrospinal fluid circulation abnormality, blood supply obstacle and other problems. Cranioplasty is a routine neurosurgical surgery for remedying cranial defects. The main purpose of the surgery is to replace the defective cranial bone with a material similar to human autologous cranial bone, to repair the bone window of the defective area, to realize the integrity of the cranial bone once again, to restore the airtightness of the cranial cavity, to maintain the stability of the physiological intracranial pressure, and to alleviate the occurrence of the syndrome of cranial defects; through the repair of the defects, it achieves symmetry of left-right and right-right head shape, natural and beautiful appearance, and enhances the patient’s cerebral spinal circulation abnormalities and blood supply disorders. The repair of the defect can achieve the symmetry of the head shape from left to right, and the appearance is natural and beautiful, improving 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 neurosurgery routine surgery, 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 mesh aperture design 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.