For 24-hour ambulatory blood pressure, look at the following aspects: 1. The value of blood pressure, the average blood pressure throughout the day should be less than 130/80 mmHg, the average blood pressure during the day should be less than 135/85 mmHg, and the average blood pressure at night should be less than 120/70 mmHg. 2. Look at the load of blood pressure, for the load of blood pressure throughout the day, the systolic blood pressure should be less than 50% and the diastolic blood pressure less than 3. look at the variability of blood pressure, the variability of normal blood pressure is normal. 4. look at the morning peak blood pressure, to see if there is a morning peak phenomenon of hypertension or if there is morning peak hypertension. 5. look at the curve of blood pressure, is it a normal spoon curve, the average blood pressure of normal people at night is 10%-20% lower than during the day.