Gliomas are infiltrative tumors that are difficult to cure by surgery alone. Postoperative radiotherapy or chemoradiotherapy is the treatment option for patients with high-grade gliomas. However, most pathological types of glioma other than glioblastoma do not have enough evidence, especially concerning the dose-fractionation scheme and clinical target volume definition for radiotherapy. This study presents standard methods of radiotherapy for each pathological type of glioma and recent radiotherapy technologies including their significance and treatment results.