Cranial defects are a common hidden problem in neurosurgery and occur in a wide range of people. The number of patients with cranial defects caused by various accidents, traffic accidents and brain diseases is very large in China every year, and many of them are children who have to face the severe trauma caused by cranial defects at a young age. In addition to the loss of face value, large skull defects not only destroy the integrity of the cranial cavity, but also cause the instability of intracranial pressure, abnormal cerebrospinal fluid circulation and blood circulation, and may affect the normal operation of brain nerve function. As children are in the stage of growth and learning, prolonged cranial defects are very detrimental to their physical and mental health and interpersonal communication. Cranioplasty can not only repair the defective skull, restore the skull appearance and protect the function of the patient, but also help the patient to recover the neurological function. How many craniosynostosis surgeries are performed in children? Usually, children with cranial defects only need to be done once to achieve cranial integrity, however, there are still many patients who undergo material replacement and secondary repair surgery after surgery. Nowadays, most local hospitals can perform cranial repair surgery, where the surgeon takes certain medical materials to repair the defective area, and the patient’s skull can be restored to integrity after the surgery. However, some patients who underwent titanium mesh cranial repair had a higher chance of postoperative rejection infection, and some had to remove the titanium mesh and repair it again because of the exposed titanium mesh. Most patients who undergo a second repair choose peek cranioplasty because this procedure is far superior to titanium mesh repair both in terms of repair results and greatly reduced postoperative complications. Therefore, it is recommended that parents take their children to a large, regular hospital for peek skull repair. At present, our team is constantly upgrading the technology and optimizing the design of materials, and currently has 4 technical innovations. We have also added the innovative plastic concept to the traditional peek skull repair and upgraded it to peek skull repair plastic surgery, which has helped many patients all over the country to solve the troubles caused by skull defects and won good reputation from patients.