The prevalence and social burden of obesity and metabolic diseases are increasing. Multidisciplinary diagnosis and treatment, including surgical treatment, can effectively improve the condition of obesity and metabolic diseases. With the developing and updating of minimally invasive surgical techniques and concepts, traditional open transabdominal bariatric surgery has been replaced by laparoscopic surgery. The emergence of new technologies such as 4K high-definition laparoscopy, single-port bariatric surgery, robot-assisted surgery, and endoscopic bariatric surgery has further contributed to the safe, effective, and individualized treatment of obesity and metabolic diseases.