Laparoscopic sleeve gastrectomy was the first performed, as a first-stage operative procedure, in treating super-obese patients. It was subsequently found that laparoscopic sleeve gastrectomy could not only significantly reduce weight but also could decrease obesity-related complications. Due to its feasibility and less complications, laparoscopic sleeve gastrectomy has become more and more polular in recent years. Although the indications and main points of laparoscopic sleeve gastrectomy have been revised as " Guidelines for Surgical Treatment of Obesity and Type 2 Diabetes in China (2019)" , the standardized operative procedures are still needed to be emphsized at the early stage of bariatric and metabolic surgery in China, so as to achieve better clinical outcome with less complications. Therefore, further optimization of surgical skills detail and related technical points would facilitate the promotion and development of bariatric and metabolic surgery.