Gastric cancer lymphatic metastasis removal refers to the removal of metastatic lymph nodes. The two main ways of distant metastasis of stomach cancer are lymphatic vessels and blood. Lymphatic metastasis is often seen in stomach cancer. If the malignant tumor cells are not removed in time after they appear in the stomach, there is a great possibility that the malignant tumor cells will be transferred to the surrounding lymphatic cells, thus forming lymph node metastasis. If the number of lymphatic metastasis is small and the location is superior, surgical resection can be chosen, which is gastric cancer lymphatic metastasis removal. If the patient is in the advanced stage of gastric cancer with large lymphatic metastasis, despite the removal surgery, it will not be cleaned up, and it is necessary to slow down the spread of tumor cells through chemotherapy and radiotherapy as well as targeted therapy. Since stomach cancer is easy to metastasize, there are many radical gastric cancer surgeries in the clinic, in which lymph nodes that have metastasized or may metastasize are removed together with the stomach cancer tumor.