Fasting blood glucose 14～15mmol/L, firstly, the cause of elevated blood glucose should be clarified, and then treated for the cause. If it is caused by stress, infection, etc., it is recommended to actively treat the original disease. If it is a non-primary diabetic patient, the glucose-lowering program needs to be adjusted, and a glucose-lowering drug can be added, such as insulin, liraglutide and so on. Acute infections, trauma or other stressful situations may appear temporary elevation of blood glucose, should follow the doctor’s advice to actively treat the primary disease. If non-primary diagnosis of diabetes mellitus, fasting blood glucose 14 ~ 15mmol / L is poor glycemic control, need to further adjust the glucose-lowering program, you can add a kind of glucose-lowering drugs, such as insulin, liraglutide, glimepiride, etc., but also combined with diet, exercise intervention. Fasting blood glucose 14 ~ 15mmol / L should be timely to the hospital, under the guidance of the doctor’s treatment.