Glioma is the most common intracranial tumor, accounting for about 45% of all intracranial tumors. It ranks second among malignant tumors in children, with an annual incidence of 3-6 gliomas per 100,000 people. Gliomas usually do not have typical symptoms at the beginning of their development. As the tumor continues to grow, it will show the following symptoms: one is the increase of intracranial pressure and other general symptoms such as headache, vomiting, loss of vision, seizures and psychiatric symptoms. The other is the local symptoms caused by the compression, infiltration and destruction of brain tissue by tumor. The diagnosis of glioma mainly relies on CT, MRI, MRS and other imaging examinations, while pathological examination is required to confirm the diagnosis, WHO classifies glioma into grade I, II, III and IV according to the pathological nature of the tumor, with grade I being the least malignant and grade IV being the most malignant. Once diagnosed, early treatment is mainly surgery. For those with deeper location, larger scope and poorer general condition, radiation therapy can be chosen. The recurrence rate of glioma is high and the prognosis is poor.