The main aim of this article is to discuss about types of primary brain tumors. There are about one hundred thiry dissimilar types of brain tumours. They are usually named after the kind of cell they developed from. Most brain tumours expand from the cells that support the nerve cells of the brain called glial cells. Here explain on Brain Stem Gliomas, Pineal Astrocytic Tumor, Pilocytic Astrocytoma, Diffuse Astrocytoma, Anaplastic Astrocytoma and Glioblastoma.