The authors present the results obtained by Co60 radiotherapy in 110 patients with the diagnosis of primary brain tumour, including 73 adults and 37 children aged up to 15 years. The follow-up time was from 2 to 8 years and it was survived by 40 patients (36.4%). Among 70 dying patients in 61 cases (87.1%) death occurred within two years after the treatment, which showed that therapeutic failures developed early in these cases. The 5-year survival rate was 24.4%. The best results were obtained in cases of astrocytoma, and the prognosis was better in children.