Objective: To observe the Jiangtangjing granule in effect of treatment for type 2-diabetes and its hypoglycemic mechanism of the initial study. Method :Forty patients with type 2 diabetes randomly divided into Jiangtangjing group and control group were compared by blood sugar

glycated hemoglobin(HbAlc) and traditional Chinese medicine(TCM) symptoms integral change through the eight weeks observation. Result: There was no significant difference between two groups before using the indicators. After treatment

Jiangtangjing- granule group show significant difference in fasting blood sugar

blood sugar

2 h postprandial glycosylated hemoglobin( HbAlc) compared with before (P<0.05)

no statistical difference compared with control group

but the symptoms of Jiangtangjing granule group patients significantly reduced compared with the control group

there was statistically significant (P<0.05). Conclusion: Jiangtangjing granule can improve the glucose metabolism and relieve the symptoms related to TCM of patients with type 2 diabetes.Its mechanism may be related to the level of incretin pancreatic hormone(GLP-1).