Lymphatic metastasis of ascending colon cancer is advanced stage. Ascending colon cancer is a common intestinal malignant tumor, once lymph node metastasis occurs, it belongs to advanced stage of cancer. Lymphatic metastasis of ascending colon cancer refers to colon cancer patients’ cancer cells passing through lymphatic vessel wall and converging to lymph nodes with lymphatic fluid, and at the same time continuing to grow with lymph nodes as the center, which belongs to the performance of advanced stage of colon cancer, and the main symptom is abdominal pain, and sometimes there are phenomena of blood in stool, constipation, and in serious cases, it will press on the intestinal tract and cause intestinal obstruction. In general, regular screening can detect early lesions, and professional treatment can avoid further development of the disease and prevent malignant progression or metastasis. Patients who have been diagnosed can be treated with chemotherapy to control their condition. Patients with ascending colon cancer need to eat easy-to-digest food and ensure balanced nutrition, and it is recommended to consult relevant departments for comprehensive treatment in time.