To study the prevention outcomes of auricular acupuncture and lifestyle in treating Type 2 Diabetes. Methods:A total of 92 patients with prediabetes type 2 during physical examination in Beijing Hospital of Traditional Chinese Medicine in Shunyi District from May 2017 to March 2018 were selected. According to the random number table method，patients were divided into the control group and the observation group，with 46 cases each. The control group was received routine intervention. Additionally the observation group was treated with auricular point pressure bean. The changes of HbA1c，BMI，FPG，P2 hPG，SBP，DBP，TC，TG，HDL，and LDL before and after intervention in type 2 diabetics were compared between the 2 groups. The outcomes were also contracted after 1 year of intervention. Results:Groups were compared before and after intervention. FPG and P2 hPG of the control group were significantly lower than before. FPG，P2 hPG，TC，HDL，and HbA1c of the observation group were significantly lower than before the intervention，while LDL was significantly higher. There was statistical difference in the groups(P<0.05); After intervention FPG，P2 hPG，TC，LDL，and HbA1c decreased more significantly in the observation group，while LDL increased significantly(P<0.05); a total of 2.17% patients of the observation group converted to diabetes mellitus after intervention(1/46). The control group converted to diabetes at the rate of 13.04%(6/46). The differences between the groups were significant(P<0.05). Conclusion:Auricular acupuncture combined with lifestyle intervention can improve blood glucose and lipid levels in type 2 diabetics more effectively than routine intervention，and effectively reduce the conversion rate of diabetes.