Nowadays, surgery has entered a new stage represented by fine and minimally invasive surgery. Just as laparoscopic cholecystectomy has become the “gold standard” surgery for the treatment of cholecystitis (gallbladder stones), laparoscopic minimally invasive surgery for colorectal cancer has been gradually established after a period of controversy and refinement, and was recognized by the NCCN (National Comprehensive Cancer Network) in 2008 and further confirmed in the 2009 edition of the NCCN Clinical Practice Guidelines for Colorectal Cancer as one of the recommended surgical procedures. It was further confirmed in the 2009 edition of the NCCN Clinical Practice Guidelines for Colorectal Cancer as one of the recommended procedures. At present, laparoscopic radical colorectal cancer surgery is commonly performed in tertiary hospitals and above, and some hospitals have performed more than half or even 80% of the total number of colorectal cancer surgeries. Laparoscopic-assisted radical colorectal cancer surgery only requires an incision of about 4-6 cm in the lower abdomen to remove the specimen, and some patients can even be operated without incision by using the natural cavity, which is less painful for patients, while the incision of about 18-20 cm in open surgery is often intimidating. More importantly, laparoscopic surgery is light on intestinal tube harassment, fast recovery of gastrointestinal function after surgery, and short hospital stay. In contrast, patients undergoing open surgery are exposed for a long time and suffer from a large amount of intestinal tube harassment, and incisional pain significantly affects their early bedtime activities. The recovery of gastrointestinal function is significantly delayed, and the hospital stay is prolonged. The patients may not dare to cough and spit due to incisional pain, and are more prone to postoperative complications such as adhesive intestinal obstruction, pulmonary infection and pulmonary atelectasis, which slow down the recovery of patients. For laparoscopic radical tumor surgery, some patients often have the following concerns: “The scope of laparoscopic surgery and lymph node dissection are not as good as open surgery? “In fact, laparoscopy can expose the nerves, blood vessels and lymphatic vessels more clearly due to the magnification and illumination of the operation field, and the lymph nodes can be cleared more completely and thoroughly by sharp cutting with ultrasonic knife instead of blunt stripping. When freeing the intestinal segment, especially the rectal segment, it can penetrate deeply into the narrow small pelvis, and the operative field is clear. It is more accurate in judging the gap between the pelvic fascia and the loose connective tissue between the two layers of the wall and the surgical access, and the total mesorectal excision (TME) is more complete, and such a delicate surgery can effectively protect the pelvic genitourinary nerve to ensure the functional recovery after surgery. “Is laparoscopic surgery less curative than open surgery?” In fact, there is a large body of evidence in recent years that laparoscopic surgery has superior near-term outcomes, and its long-term outcomes are no worse than those of open surgery. The European CCLOR Study Group conducted a multicenter randomized controlled study of laparoscopic and open colon cancer surgery and showed no statistical difference in 3- and 5-year survival rates and recurrence rates between the laparoscopic and open groups. The results of a randomized controlled trial on the long-term outcome of laparoscopic versus open colorectal cancer surgery by the CLASICC study group in the United Kingdom also confirmed that the overall survival, tumor-free survival and local recurrence rates in the laparoscopic group were not statistically different from those in the open group. It is now believed that most patients with colorectal cancer have indications for laparoscopic surgery. Contraindications for laparoscopic surgery include: ①, tumor diameter greater than 6 cm or extensive infiltration with surrounding tissues; ②, severe intra-abdominal adhesions or acute intestinal obstruction after multiple surgeries that affect intra-abdominal exposure; ③, abnormal bleeding status; ④, severe cardiopulmonary abnormalities that cannot tolerate surgery. Compared with open surgery, the operation time was slightly extended by 30-60 minutes, intraoperative bleeding was significantly reduced by only 50-100 ml, postoperative ventilation, bed and hospitalization time were significantly shortened, and the total hospitalization cost was only increased by 2000-4000 RMB, and no recurrence of metastasis was seen in the follow-up so far. Therefore, we believe that minimally invasive laparoscopic surgery based on the principle of radical tumor treatment is the best choice for patients with colorectal cancer.