As a convenient and rapid monitoring tool for their own blood glucose, the home fast glucose meter is increasingly accepted and used by the majority of diabetic patients. In the process of use, many patients have a lot of problems in how to operate the blood glucose meter, the following will focus on how to correctly use the home fast blood glucose meter. First of all, there are a lot of questions about the frequency and number of times of home self-testing blood glucose. It is generally believed that if the diabetic patients’ blood glucose control is stable and ideal, then it is recommended that the frequency of home self-testing blood glucose is 4~5 times of rapid blood glucose testing every 2~4 weeks. This includes not only fasting blood glucose, but also postprandial blood glucose and bedtime blood glucose. In addition, if the patient’s blood glucose control is not satisfactory, then the frequency of monitoring should be increased appropriately. The results of self-monitoring should be recorded, not only the time and value of the blood glucose test, but also the diet, exercise and medication at that time, such as how much food was eaten or what dose of medication was taken, so that the doctor can understand the blood glucose control situation comprehensively and give targeted guidance. Secondly, the blood collection site is usually the inner and outer fingertips of the ring finger or little finger of both hands, and it is not recommended to use the abdominal area of the finger. The blood collection site should be disinfected before the blood collection and wait for the disinfectant to dry naturally before the blood collection, to avoid the disinfectant diluting the blood itself and causing inaccurate test results. When collecting blood, a suitable depth of needle should be chosen for the blood collection needle to ensure the smooth and natural flow of blood after blood collection to avoid the dilution of blood by tissue fluid due to forceful squeezing on the one hand, and to reduce the pain caused by blood collection on the other hand. Then for the blood glucose meter should be regularly calibrated, in the operation need to pay attention to the code of the test paper and the instrument stored in whether the same, if it is not consistent, then need to adjust immediately, of course, there are currently on the market without adjusting the code of the blood glucose meter and test paper supply, which can be used for some elderly people with poor memory. There is also the blood should be spread all over the sampling area of the test paper but not too much beyond the sampling area, especially for the blood glucose meter using the colorimetric principle is how, so as to avoid the error of the instrument for the interpretation of the results due to too little or too much sampling. For the blood glucose meter using the electrochemical method, the sampling area of the test paper is generally designed as a small sheet with siphoning function, so that the patient does not need to take the initiative to drop blood on it, but only needs to be close to the sampling end of the test paper to siphon it naturally. Finally, the fingers that often need to perform rapid blood glucose testing should be protected accordingly, such as avoiding damage, cleaning and disinfecting the sampling area frequently, simply shaking the hand to make the blood flow back to the distal end of the finger to help the blood collection process smoothly, rubbing the hand or using warm water to soak can also help the blood perfusion reflux at the end of the finger. Adopting the correct method and paying attention to the details in the process of using the blood glucose meter can maximize the advantages of the home blood glucose meter, guarantee the accuracy and effectiveness of self-monitoring, and ultimately help to control and improve the condition.