Patients with brain metastasis from gastric cancer usually live for 3-6 months. Stomach cancer is a malignant tumor, and metastasis may occur. If brain metastasis occurs, it means it is advanced gastric cancer, and the patient’s prognosis is very poor, and he/she will experience abdominal pain, abdominal distension, and wasting, and also symptoms of elevated intracranial pressure, such as vomiting. After this condition is confirmed, active treatment is needed, including chemotherapy, immunotherapy, and traditional Chinese medicine can also be applied. The survival time varies depending on the patient’s age and pathological staging, with some patients having a relatively long survival time and others having a relatively short survival time. After the above treatment, the survival time of patients can be prolonged and their pain can be reduced.