Generally, we use MRI to diagnose glioma, which is an imaging level diagnosis, that is, imaging diagnosis, which is a doctor’s conclusion based on the previous experience of reading films and relying on the results of big data, and there is a certain probability of making mistakes. A definitive diagnosis of glioma requires pathological diagnosis, which is the gold standard. It is the conclusive diagnosis. There are two types of glioma surgery: one is biopsy surgery, that is, surgery to clarify the nature of the tumor, the purpose is not to cut how much tumor (because the scope is too large, it is not possible to cut much, but to remove up to 50% if it is safe), but to take specimens from typical areas to obtain pathological diagnosis and guide the subsequent treatment. The extent of resection can be partial resection, most resection, near total resection, total resection, extended resection and so on. Theoretically, the more resections, the better the prognosis. It can be seen that all gliomas require surgery: either biopsy surgery or resection surgery.