Diabetes mellitus,an epidemic metabolic disorder characterized by high blood glucose level associated with various microvascular complications,is one of the main causes of human suffering across the globe.With the advance of the pathogenesis of diabetic research,the study of anti-diabetic drugs has transformed from the traditional drugs to the current products with new targets and new mechanism.Some of these drugs are already marketed or still in clinical trials,e.g. GLP-1 activator,DPP-4 inhibitor,GPR119 activator,SGLT-2 inhibitor,11β-HSD1 inhibitor,PTP1B inhibitor and so on.In this article,the new antidiabetic drugs mentioned above are reviewed with regard to the therapeutic targets and mechanism.