Diabetes mellitus fasting blood glucose 7.1mmol / L is generally not serious, only slightly higher than the range of good control standards, usually pay attention to follow the doctor’s instructions regular medication and strict dietary control, regular monitoring of blood glucose, if the blood glucose for a long time more than the control target, it is recommended to seek timely medical attention. According to the guideline for the prevention and treatment of type 2 diabetes in China, the good control standard for diabetic patients is fasting blood glucose 4.4-7.0mmol/L, and non-fasting blood glucose is less than 10mmol/L. The patient’s fasting blood glucose is 7.1mmol/L, which is a little bit higher than the target, so it is recommended that he take medication regularly and control his diet strictly. However, it should be noted that the glycemic target can be appropriately relaxed for the elderly, and the glycemic control target can be appropriately relaxed for the elderly diabetic patients with poor health status, but it should be based on the following principles: no obvious diabetic symptoms due to high blood glucose; no increase in the risk of infection due to high blood glucose; and no hyperglycemic crisis due to high blood glucose. It is recommended that patients usually take glucose-lowering drugs on time as prescribed by the doctor, pay attention to diet and exercise, and consult the doctor in time when discomfort occurs.