The blood glucose of diabetic patients is extremely unstable, but the monitoring of blood glucose is necessary for both the treatment and prevention of diabetes. Leyland Dynamic Glucose Monitoring System (DGMS) is mainly composed of subcutaneous glucose sensor (implanted part), portable data recorder (storage), data analysis software (display and analysis) and other components. It is simple to operate, easy to carry, and has been widely used in various clinical departments. Its superiority lies in that it can solve the limitation of single-point glucose monitoring, reflect the blood glucose fluctuation of a day at any time, help prevent the occurrence of hypoglycemia and hyperglycemic events, apply to all diabetic patients’ blood glucose monitoring and treatment evaluation, and can retrospectively analyze the blood glucose control situation, bringing certain economic and social benefits.