There is no blood glucose meter which is good to use which is accurate, blood glucose meter is very much, when buying, we should focus on whether the blood glucose meter is accurate, convenient, can be timely and effective to know the value of blood glucose, and whether it has passed the State Administration of Medicine recognized. Diabetic patients non-hospitalization period can use the blood glucose meter for blood glucose monitoring, but also need to go to the hospital on a regular basis to review, mainly including fasting blood glucose, postprandial 2 hours of blood glucose, glycated hemoglobin and so on. This is because hospital testing equipment needs to be calibrated regularly and is highly accurate. It is easy to understand the accuracy of the blood glucose meter by comparing the patient’s self-tested blood glucose value with the blood glucose value of the hospital review. If there is no problem with the accuracy of the glucose meter and the blood glucose is measured to be relatively high, the patient should go to the endocrinology department of the hospital in a timely manner, and standardize the treatment under the guidance of the doctor. Patients should avoid high sugar, high fat, high cholesterol food, moderate physical activity, take hypoglycemic drugs on time, and go to the hospital regularly for follow-up and treatment under the guidance of the doctor.