Mood can affect blood glucose, clinically diabetic patients in the process of treatment, if the mood of anxiety, depression, mental tension, etc., can affect blood glucose control. Patients in a state of mental tension, anxiety, or even depression can increase the secretion of glucagon and antagonize the glucose-lowering effect of insulin, thus causing substandard blood glucose control. When the patient is nervous, it can affect the standardized treatment. Diabetes can not be cured, but a preventable, treatable disease, maintain a positive, optimistic mindset, standardized glucose-lowering treatment, can make the patient’s blood glucose control up to standard, can delay the occurrence of diabetes complications. Diabetic patients in the treatment, must maintain a positive, optimistic attitude, to adhere to the diet, exercise exercise, while under the guidance of the doctor, adhere to oral hypoglycemic drug therapy, regular monitoring is very important.