The survival period of diabetic nephropathy patients cannot be generalized, it is related to the stage and whether the treatment is timely. Diabetic nephropathy has five stages, Ⅰ, Ⅱ, Ⅲ diabetic nephropathy patients timely treatment, survival is very long, life expectancy can be up to 10 to 20 years or more, and normal people; Ⅳ, Ⅴ diabetic nephropathy patients treatment is not timely, the survival period will be significantly shortened. Diabetic nephropathy is a more common chronic complication of diabetes mellitus, a serious threat to the health of patients. If the patient is in stage Ⅰ, Ⅱ, Ⅲ, timely treatment, regular medication, the survival period is often very long, life expectancy can be up to 10-20 years or more, no difference with normal people. If the patient is in stage Ⅳ, Ⅴ, the treatment is not timely, the condition continues to deteriorate, easy to anemia, electrolyte disorders, acid-base balance imbalance, and so on, and even the emergence of uremia, this kind of patients tend to have a poorer prognosis, the survival period will be shortened obviously. Diabetic nephropathy patients should go to the hospital in time, under the guidance of professional physicians for regular review, regular medication to avoid deterioration of the condition.