Abstract: Bariatric surgery began in 1950s. The rapid increase of obese patients and development of laparoscopic techniques lead to popularity of bariatric surgery all over the world in 1990s. Current mainstream of bariatric surgeries include laparoscopic adjustable gastric banding, sleeve gastrectomy, Roux en Y gastric bypass and biliopancreatic diversion. In this review, the efficacy of different surgical procedures was compared in the aspects of metabolic disorder remission and incidence of operation complications and mortality. Efficacy of bariatric surgery on the alleviation of metabolic disorders (including hypergycemia, hyperlipidemia, hypercholesterolemia), individual treatment and interdisciplinary cooperation should be emphasized.