The life expectancy after dialysis for chronic renal failure stage 5 varies from person to person. Those who are on regular dialysis, with good compliance and fewer complications can reach more than 10 years; those who are on irregular dialysis, with poor compliance, more complications, and in poor general conditions will have a significantly shorter life expectancy. Patients who enter dialysis in stage 5 of chronic renal failure are prone to edema, heart failure, hypertension, anemia, hyperkalemia and other complications due to decreased renal excretion and endocrine function, and those who are on regular dialysis (3 times a week, 4 hours each time), with good compliance and fewer complications will have a life expectancy of more than 10 years in general. If dialysis is not regular, poor compliance (not controlling high potassium and high phosphorus food), and more complications, the number of hospitalization increases greatly, which will not only affect the quality of survival of patients, but also affect the survival cycle. People with chronic renal failure stage 5 dialysis should cooperate with doctors in hemodialysis centers, regular dialysis, and follow the doctor’s instructions for active treatment.