Some patients with stage III rectal cancer lymphatic metastasis can be cured, which is related to the scope of metastasis and the number of lymph node metastasis. For stage III rectal cancer lymphatic metastasis, if the metastatic range is not big enough to be operated, it should be operated as early as possible, but the recurrence rate after operation is relatively high, so adjuvant chemotherapy is also needed after surgical treatment. Although the cure rate of stage III rectal cancer with lymphatic metastasis will not be particularly high, it is still about 30%, so it is still possible to be cured. It is suggested that patients should follow the doctor’s prescription in time, and the symptoms can be relieved to some extent, and the treatment effect of some patients is still very good, and clinical cure can be achieved. At the same time in life, we should pay attention to rest, adequate nutrition, appropriate activities, maintain a good state of mind, conducive to physical recovery.