Treatments for lung cancer brain metastasis recurrence mainly include whole brain irradiation, stereotactic radiotherapy, surgery, chemotherapy and molecular targeted therapy, etc. The use of medicines should be in accordance with doctor’s prescription. 1. Whole brain irradiation: it is widely used in treating lung cancer brain metastasis to relieve neurological symptoms and prolong patients’ survival. It is better for multiple brain metastases. 2. Stereotactic radiotherapy: characterized by precise positioning, concentrated dose, less damage to patients and faster recovery, it can quickly relieve clinical symptoms and control local tumor progression. 3. Surgery: usually used to treat patients with single brain metastasis, surgical treatment can relieve patients’ clinical symptoms, and when tumor compression poses a threat to patients’ life, surgical resection is the best choice, but it is necessary to consider whether patients can tolerate it. 4. Chemotherapy: when brain metastasis occurs in lung cancer, the blood-brain barrier has been destroyed, so many chemotherapeutic drugs can be applied, such as cisplatin. 5. Molecular targeted therapy: at present, it is a more important means to treat lung cancer, and commonly used drugs include erlotinib. For patients with recurrent lung cancer brain metastasis, it is recommended to go to the hospital in time and receive treatment under the guidance of professional doctors.