Peritoneal metastasis refers to peritoneal implantation metastasis of malignant tumors, the appearance of which suggests that the tumor has entered the advanced stage and is more serious. Peritoneal implantation metastasis is a kind of tumor metastasis, which is mainly caused by direct dissemination of cancer cells. Clinically, implantation metastasis can easily occur in digestive system tumors and reproductive system tumors, such as liver cancer, gastric cancer, colon cancer, ovarian cancer, etc. Once implantation metastasis occurs, it indicates that the tumor has entered into advanced stage, which is very serious. Once implantation metastasis occurs, it suggests that the tumor has entered the advanced stage, which is very serious, and the prognosis of the later stage is often poor. When tumor implantation metastasis occurs, it needs to be treated in accordance with the pathological nature of the tumor itself. Clinical control is mainly carried out through surgery, radiotherapy, commonly used drugs including cisplatin, etc., and combined with imaging and laboratory tests to comprehensively determine the changes in the condition. In case of peritoneal implantation metastasis, once obvious abdominal distension, abnormal digestive system condition and other symptoms appear, it is necessary to consult a doctor in time, and handle the case under the guidance of the clinician, so as not to be negligent, so as not to delay the condition.