Blood glucose value of 19.6 mmol/L can be lowered in a short time after hospitalization and treatment with oral hypoglycemic drugs and insulin. However, blood glucose control is a long-term work, and it is not possible to restore the blood glucose to normal value by hospitalization. It is recommended that the patient actively cooperate with the doctor for treatment. Blood glucose value of 19.6mmol/L, after hospitalization, the doctor will use hypoglycemic drugs according to the patient’s condition, after the application of hypoglycemic drugs, blood glucose value can be reduced in a short period of time, but the effect is short-lived. Blood glucose 19.6mmol / L, this time the blood sugar is at a higher level, need to pay attention to whether there are acute complications of diabetes such as diabetic ketoacidosis. High blood glucose in a clear cause, according to the condition of the cause of treatment, and the need to improve lifestyle, if necessary, the application of hypoglycemic drugs and other methods to control blood glucose. Blood glucose value of 19.6mmol/L can be lowered in a short period of time after hospitalization and treatment with medication. However, the focus is to maintain the blood sugar at the normal level for a long time, which requires the patient to actively cooperate with the doctor’s treatment.