Tthrough reading Chinese ancient book Huangdi Neijing,and summarizing and analyzing related literature , the basic pathogenesis of obesity have been found to be the stomach preponderance and spleen weakness，and the imbalance of ascending and descending; Banxia Xiexin Decoction not only has the functions of relieving heat to inhibit stomach intake，supplementing deficiency to assist spleen transport，regulate the ascending and descending，but also has the effects of improving insulin resistance and regulating sugar and lipid metabolism.Therefore，it is believed that Banxia Xiexin Decoction can be used in the treatment of insulin resistant obesity，which can provide ideas and methods for its treatment.