Malignant tumor of right lateral ventricle can be treated mainly by surgery, radiotherapy and chemotherapy. 1. Surgery: the main treatment for malignant tumors is surgical resection, however, due to the infiltrative growth of malignant tumors, it is difficult to remove all of them by surgery, and regular review is needed after surgery, and if the tumor recurs, a second surgery may be needed. 2. Radiation therapy: some tumors are more sensitive to radiation therapy, so radiation therapy can be considered first, which can also be used as adjuvant therapy after surgical treatment. Radiation therapy can also be used as an adjuvant therapy after surgical treatment. Some patients who are in poor condition and have difficulty in tolerating surgical treatment can also choose radiation therapy. 3. Chemotherapy: it can be used as adjuvant treatment after surgery and treatment of some malignant tumors which are sensitive to chemotherapy. It is recommended that patients with right ventricular malignant tumors should go to the hospital in time, and the doctor should formulate personalized treatment plan according to their conditions, and actively treat them under the doctor’s guidance.