The prevalence of obesity in China is escalating year by year. A great deal of clinical evidences indicate that laparoscopic sleeve gastrectomy is able to significantly reduce the body weight and improve related metabolic syndrome in obese population. However, there is still no standardized surgical operation guidelines for laparoscopic sleeve gastrectomy in China. For this reason, Chinese Society for Metabolic and Bariatric Surgery initiated to draft the first edition of The clinical guideline for laparoscopic sleeve gastrectomy procedure for the purposes of specifying and standardizing the laparoscopic sleeve gastrectomy procedure, so as to provide a clinical guidance for the metabolic and bariatric surgery practice in China.