Acute renal failure means that the kidneys of the patient can no longer adequately excrete metabolic wastes in the body, so this type of patients require a high quality low protein diet. Because if the protein intake is too much, it will produce more metabolic waste, increasing the burden of excretion of the kidneys, and will also lead to further disruption of the body’s internal environment. This type of patients can eat meat, chicken, duck, fish, meat, eggs and milk can be eaten, generally the intake of these meat dishes accounted for 6-8% of the average person can. Secondly, patients with acute renal failure should pay attention to the control of water intake. If the patient has reduced urine volume and swelling, water intake should be strictly controlled, and the daily water intake should be equal to the previous day’s urine volume plus 500 ml. If the patient has normal urine volume and no obvious swelling, hypertension and other water overload phenomena, the water intake can be relaxed.