Most meningiomas are benign. Atypical meningiomas are grade 2, mesenchymal meningiomas and malignant meningiomas are grade 3, and of course there are clear cell type and chordoid meningiomas that are grade 2. There are several types of meningiomas that are difficult to operate on, including rock slope meningiomas, sagittal sinus meningiomas, and smaller functional area meningiomas. Regardless of the type of recurrent tumor surgery is difficult. L was one of my patients with recurrent malignant meningioma last year, I completed the patient’s second surgery, which was a convex meningioma, not related to the venous sinus or motor area, the surgery went well, and because of the non-benign meningioma, he received radiotherapy to the head again, due to the patient’s personality, his lover and his son’s personality, we became good friends, had phone calls and weibo, and looked at each other on the web. six months after the radiotherapy. The patient found a left upper lung occupancy during a routine physical examination, considering central lung cancer, and when the lung pathology came out, everyone was dumbfounded that it was a meningioma that had metastasized to the lung. This is a very rare case, and the original concept that intracranial tumors do not metastasize to the outside of the skull is about to be updated. This brings up a new question, what is the comprehensive treatment plan for such a case, do we still need systemic radiotherapy, is there a drug treatment plan for malignant meningioma, and where is the road to treatment.