The method of using blood glucose measuring instrument includes: preparing materials, sterilizing, operating correctly and reading values. 1. Preparing materials: When the blood glucose tester is in use, it is necessary to first prepare various testing instruments and materials, such as blood glucose meter, cotton balls, alcohol, blood collection needles and so on. 2. Sterilization: The patient takes a sitting position, checks the items and sterilizes the patient. 3. Correct operation, read the value: the test strip and the blood glucose meter in good contact with the blood glucose meter, the blood collection needle into the tip of the finger, after piercing the finger, the first drop of blood will be discarded, the second drop of blood from the end of the finger drops in the test strip, after a few seconds you can get the value of the blood glucose. Blood glucose meter if measured abnormal blood glucose, it is recommended to consult a doctor as soon as possible to clarify the diagnosis and cooperate with the doctor’s treatment.