RÉSUMÉ
Objective To investigate the operation process of the technology, safety and operability of total laparoscopic resection for colorectal cancer by natural orifice specimen extraction (NOSE). Methods 40 patients with colorectal cancer who met the inclusion criteria of NOSE method from April 2015 to June 2017 were randomly divided into control group (traditional laparoscope) and experimental group (NOSE group), 20 cases in each. The intraoperative and postoperative quality of life between the two groups were statistically analyzed. Results All the patients completed the target operation, and no other operative methods were transferred. No complications occurred in either group. There were statistically difference (P < 0.05) between the two groups of patients in the two indicators (time and blood loss), there was no statistically significant difference in hospital time (P > 0.05), there was statistically difference (P < 0.05) between the two groups of quality of life score (SF-36 scale) in somatic function, role function, pain, cognitive and overall health status of five dimensions, the NOSE group was superior to the traditional laparoscopic group. Conclusion There are advantages in totally laparoscopic colorectal cancer treated with whole NOSE method. The overall health is good, few restrictions on daily work and life, quicker recovery of physical function and role function. Therefore, the application can be promoted if the condition is allowed.