Headache is the most common clinical manifestation of intracranial malignant tumor. Early headache is paroxysmal, and the symptoms are usually mild, mostly occurring in the early morning or at night, and the symptoms will be aggravated when the head is lowered, coughing, straining, defecating, etc., and can be reduced when sitting or standing. For malignant tumor in the skull, the headache is rarely a whole head pain. Generally, the location of the headache is difficult to locate exactly, but after careful questioning, a localized diagnosis can be obtained. When the intracranial pressure rises, the headache can involve the whole skull, and different parts of the tumor produce different parts of the pain, which has a certain indicative effect on the localization. For posterior cranial fossa tumors, since the headache is usually detected earlier and the degree is relatively more intense, it can spread to the occipital and orbital areas. For pediatric patients, because the cranial fontanelle is not closed and the elderly are accompanied by certain atrophy, their headache symptoms are generally relatively mild.