Renal failure dialysis therapy is also known as renal replacement therapy or hemodialysis. At present, renal failure is mainly treated by hemodialysis therapy in China, and patients should be treated in the hemodialysis department of regular hospitals. Hemodialysis needs to determine the specific treatment plan according to the value of blood creatinine in the patient’s body, and generally patients are treated with dialysis 2-3 times a week for 3-4 hours each time. The latest emergence of artificial kidney, the essence of the smaller size of the dialysis machine, patients can carry with them, but is still in the experimental stage, not officially used in the clinical.