Background and aim: Based on the experimental hypoglycemic effect as well as improvements of diabetic symptoms such as thirst, excessive drinking, excessive urination, nocturnal urination of traditional medicine recipe was named "Tri ba dia hoang" The present study was designed to evaluate the hypoglycemic effect of this recipe on type 2 diabetic patient. Methods: Controlled clinical trials, randomised comparing the hypoglycemic effect on type 2 diabetic patient in the hospitals: 115, Traditional Medicine Institute, Third Branch - Medical Centre of University of Medicine and Pharmacy at Ho Chi Minh City. 68 patients with fasting plasma glucose ranging from 7 to 10 mmol / l, were conducted on 2 groups.