Craniotomythe skull can be fixed using devices such as nail plates and skull locking.Neurosurgical craniotomy approaches include infratemporal opening, frontotemporal opening,top incision,temporal incision, occipital incision,etc. At the same time,due to the advancement of minimally invasive technology,some minimally invasive surgical approaches have smaller openings and do not need to restore skull defects.If the above surgical approaches are used to treat increased intracranial pressure and brain tissue edema caused by various reasons,the cranial cavity cannot be closed immediately,and it may take a period of time to repair the skull with artificial materials,which is fixed by cranial nails.For diseases or injuries without severe cerebral edema and cranial hypertension,an autologous skull can be used,and the fixation methods are nail and titanium plate fixation,skull lock fixation,etc.The fixation method and fixation materials after craniotomy can be fully communicated with the clinician before surgery,and do not be overly nervous.