The development of modern medicine has also progressed rapidly. In the last decade or so, there are α-glucosidase inhibitors, insulin sensitizers and enteral insulin listed in China one after another, and the glucose-lowering effect of western drugs is undeniable. However, studies have proven that the effectiveness of western drugs in lowering glucose is not proportional to their effectiveness in preventing and treating chronic complications, nor is it proportional to the life expectancy of diabetic patients. The lower the blood glucose control, the greater the cardiovascular risk. This may be due to the fact that the lower the patient’s blood sugar, the higher the chance of hypoglycemia and the greater the damage to the heart, brain and other vital organs. Therefore, stabilizing blood glucose and preventing chronic vascular complications is the focus of treating diabetes. Clinical experience proves that diabetic patients who take Chinese medicine for a long time or intermittently have stable blood sugar, stronger resistance, later appearance of chronic complications and delayed application of insulin. This is because: 1. Traditional Chinese medicine is a discriminatory treatment, not a simple listing of some herbs that have hypoglycemic effects. Patients with elevated blood sugar often have reasons, such as insomnia, constipation, excessive sweating, depression, etc. Some scholars also call them “adverse blood sugar factors”. The treatment of high blood sugar in Chinese medicine is not to have any special hypoglycemic drugs, but to improve these symptoms in response to these “unfavorable factors”, so as to achieve the purpose of lowering blood sugar. This is also the reason why “the formula for lowering blood sugar can not be universal”. 2, modern medicine believes that the onset of diabetes is closely related to “pancreatic islet failure”, while the “spleen” in Chinese medicine, including the “pancreas” and “spleen The function of “spleen” in Chinese medicine includes “pancreas” and “spleen”. Experimental evidence shows that the Chinese medicine method of strengthening the spleen and benefiting the qi to treat diabetes can improve the function of the islets, increase the secretion of insulin, delay the failure of the islet cells, so as to achieve the purpose of lowering blood sugar, but also delay the application of insulin time. 3, the clinical manifestations of elderly diabetic patients have the following characteristics: (1) three more symptoms are not typical, but often tasteless diet, fatigue, weakness of the waist and knees, weakness of the limbs and other symptoms; (2) the disease is long; (3) the onset of insidious, a considerable number of elderly diabetic patients found through physical examination of the disease, and no typical symptoms, the early appearance of only a lack of energy, reduced function and other minor symptoms of spleen and kidney deficiency; there are many patients until the emergence of Many other patients do not come to the clinic until they have serious complications, such as myocardial infarction, acute cerebrovascular disease, ketoacidosis, and renal insufficiency, which are already at the late stage of diabetes or serious complications; (4) old age and physical weakness. According to the above clinical characteristics, we can conclude that old age diabetes mellitus is based on the original deficiency, and the main pathological mechanism is the deficiency of both spleen and kidney. Therefore, in the treatment, while strengthening the spleen and benefiting the qi, we should not forget to apply kidney tonics appropriately. The Chinese herbs for strengthening the spleen and tonifying the kidneys have the function of increasing resistance and improving immunity, such as Chinese wolfberry, Cornu Cervi Pantotrichum, Radix et Rhizoma Dioscoreae, Bonesetter, Morinda Citrifoliae, Douzhong, Cuscuta, Fried Yam, etc.