Diabetic microangiopathy is mainly manifested in the eyes and kidneys, and the main one seen in normal work is diabetic retinopathy, which has a total of 6 stages, with clinical manifestations including blurred vision and blindness. Diabetic nephropathy is also a kind of microangiopathy, which is divided into 5 stages, with typical manifestations including elevated urine protein and creatinine, which can eventually lead to end-stage nephropathy, or the familiar uremic syndrome. Diabetic microangiopathy is closely related to blood glucose fluctuations, so for these patients, it is important to control blood glucose, in addition to the need for targeted drug therapy.