Whether a malignant intestinal polyp can be cured after resection depends on the level of the intestinal wall invaded by the malignant polyp, as well as whether it is accompanied by the surrounding lymph node metastasis and the size of the resection. First, if the malignant polyp belongs to early stage, the level of tumor cells invading the intestinal wall is superficial, and there is no obvious metastasis in the surrounding lymph nodes. In this case, complete resection of intestinal polyps under endoscopy, the scope of resection is sufficient, and the postoperative pathological results suggest negative margins, which can achieve a better curative effect and do not need chemotherapy treatment after surgery. Second, if the size of intestinal polyps is larger, the level of invasion of the intestinal wall is deeper, and accompanied by obvious lymphovascular metastasis and invasion. At this time, the removal of malignant polyps without the clearance of surrounding lymph nodes can not completely remove the malignant tumor, which can not achieve the radical effect, and the tumor cells are prone to recurrence.