Electronic blood glucose meter, also called electronic blood glucose meter, is a convenient intelligent electronic medical instrument for testing its blood glucose index. An electronic blood glucose meter is generally applicable to people with high blood sugar. It mainly includes a blood glucose meter, test paper, and needle, the needle is used to pierce the ring finger to collect blood, the test paper is used to inhale the sample blood and access to the blood glucose meter, and the blood glucose meter derives the blood glucose index by testing the test paper. So how should we use the blood glucose meter accurately?