When patients with gastric cancer are diagnosed with distant metastases, the survival time ranges from six months to one year. The most common site of metastasis is liver, lung or cranial or bone tissue, which is a route of metastasis via blood transport and is not suitable for radical resection surgery, but can choose palliative surgery to remove the primary tumor lesion. After surgery, systemic intravenous chemotherapy can also be administered, which can control the rate of tumor development and achieve the purpose of prolonging survival and improving the patient’s quality of life in the late stage. In late stage complicated liver metastasis, patients will show obvious abdominal pain, abdominal distension, large amount of ascites, and even respiratory difficulty, and can also choose to perform abdominal puncture and drainage under local anesthesia to alleviate patients’ symptoms and prevent spontaneous peritonitis. At the same time, symptomatic treatment such as prevention of infection is required.