The therapeutic drugs for brain metastasis of stomach cancer mainly refer to chemotherapeutic drugs. The preferred treatment for stomach cancer is surgery, but if brain metastasis of stomach cancer occurs and surgery cannot be taken, systemic chemotherapy is needed, which can be treated by intravenous chemotherapy with chemotherapeutic drugs such as docetaxel, oxaliplatin, etc., or by oral chemotherapeutic drugs such as oral capecitabine and tegretol. In addition, after brain metastasis of gastric cancer, if it is impossible to take surgical treatment, radiotherapy needs to be taken according to the condition, chemotherapy can be considered, or synchronous radiotherapy and chemotherapy. Through radiotherapy, it is generally able to shrink the tumor, alleviate the local pain symptom caused by the cancer, and control the progression of the disease. Patients with brain metastasis of gastric cancer should actively cooperate with doctors to prolong the survival period and improve the quality of life, and go to the hospital for recheck regularly.