If diabetic nephropathy is identified as kidney yin deficiency, it can be treated with Liuwei Di Huang Wan under doctor’s instruction. Diabetic nephropathy belongs to the name of western medicine, while Liuwei Di Huang Pill belongs to Chinese patent medicine, which can nourish yin and tonify kidney. It is used to treat kidney yin deficiency, dizziness and tinnitus, lumbar and knee soreness (a feeling of soreness and weakness in the lumbar and knee areas), bone vapor and tidal fever (a burst of heat, feeling that the heat is penetrating from the inside of the bone to the outside), night sweating (abnormal sweating after going to sleep, and sweating stops after waking up), and spermatorrhea. If diabetic nephropathy presents with the indications of this drug, i.e., kidney yin deficiency, with clinical manifestations of lumbar and knee soreness, weakness, night sweating, heartburn and insomnia, dry mouth and thirst, spermatorrhea and premature ejaculation, impotence, etc., then the drug can be used for treatment. The adverse reactions and contraindications of the drug are not clear, avoid spicy food and cold medicines. When symptoms such as loss of appetite, gastric discomfort, loose stools and abdominal pain occur during the period of taking the medicine, one should go to the hospital for consultation. If it is not the above evidence type, the drug is not recommended for treatment. The use of the drug should be carried out under the supervision of a doctor, and in case of the combination of the above diseases it is recommended to consult a doctor before using the drug.