How long can stomach cancer metastasis to liver live is mainly related to the severity of the disease, treatment and individual factors of patients, which should be analyzed on a case-by-case basis and cannot be generalized. If the metastasis is only to the liver and is a single metastasis, the primary lesion can be treated surgically, and both the primary lesion and liver metastasis can be removed at the same time, and the survival period can be 6 months with radiotherapy after surgery. If there are multiple metastases or more liver metastases that cannot be treated by surgical resection, effective radiotherapy can be administered to obtain a survival period of 3-6 months. If liver function is poor, or if gastric cancer develops gastrointestinal hemorrhage, etc., the survival period may be only 1 month. After gastric cancer metastasizes to the liver, patients are advised to maintain an optimistic attitude towards life and actively cooperate with doctors for treatment in order to improve life quality and prolong life expectancy.