Cerebellar astrocytoma is prevalent in children, mainly characterized by hidden clinical symptoms and good prognosis. 1. Hidden clinical symptoms: due to the slow growth of tumor, the clinical symptoms and signs of cerebellar astrocytoma are hidden. Symptoms will appear only when the tumor volume is very large. The most common symptom is intermittent headache caused by hydrocephalus, accompanied by nausea and vomiting. Patients may also present with subcerebellar tonsillar herniation, which manifests as angular retraction and cervical ankylosis. 2. Good prognosis: cerebellar astrocytoma is a neuroectodermal tumor of low malignancy in children. The boundary between the tumor and the surrounding normal tissues is clear, which provides the basis for surgical total excision. For cerebellar astrocytomas that do not invade the brainstem, the 25-year survival rate of children after surgical removal of the tumor can reach 90%. For patients diagnosed with cerebellar astrocytoma, they should immediately go to the relevant departments of regular hospitals for treatment under the guidance of professional physicians. The earlier the treatment, the less impact on the patient’s life expectancy.