During childhood, the cranium is in the stage of growth and development, and the cranial defects left after surgery will gradually change with growth and development. Parents of patients and even some medical practitioners often ask that children’s skulls are still growing and developing. Traditional titanium mesh repair is suitable for adults, not necessarily for children. Children’s skull changes a lot with age, artificial materials fixed in the skull of undeveloped children with poor stability; and with the growth of children, the cranial defect area becomes larger, there is the possibility of shedding the repair material; early repair materials will hinder the normal growth of the skull, resulting in asymmetric development of the skull, which affects the development of the brain tissue and the appearance of the skull. Generally, doctors will wait until the child is 12 years old before considering the use of titanium mesh for cranial repair. In recent years, with the emergence and application of PEEK material, more and more clinical studies have confirmed that PEEK material can be applied to children’s skull repair surgery.PEEK material can maximize the conformity of children’s cranial physiological and anatomical morphology, especially frontal, supraorbital rim, fronto-temporal and other parts of the cranial bone repair, to create a completely personalized repair, so that after the surgery to maximize the restoration of the patient’s original appearance, to ensure a perfect repair. Ensure perfect repair. Meanwhile, PEEK is a highly bionic repair material with high compatibility with human bones, and can be well attached to the bones. In the process of bone growth and development, PEEK’s excellent bio-plasticity and mechanical properties can ensure the strength of the repaired bone plate and at the same time will not be disconnected from the original bone plate, which can be very good to promote the growth and development of the cranial bone. Parents take care of their children after surgery during the period, must understand some of the precautions during the recovery period, small children do cranial bone repair need to recover for a long time, parents and friends should have patience, usually one to three months. Parents usually need to pay attention to nursing, often check the fixed place, also need to let them keep side lying. Diet should also be reasonable, need to supplement calcium, mood must also be happy, which is conducive to the recovery of the disease. As long as you insist, the patient will soon be able to regain live. The child’s cranium is in the stage of growth and development, and the cranial defect left after the operation will gradually change with the growth and development. According to the expert’s guidance of medication and treatment, the treatment can help patients and friends get well soon.