Dietary considerations for renal failure include: low salt, low fat, low phosphorus, high quality low protein diet. At the same time, pay attention to the intake of adequate calories, pay attention to the supplementation of vitamins and nutrients such as folic acid, as well as to control the intake of potassium, phosphorus and so on. Low salt: Eat less salty food such as pickles and sauerkraut, and eat a light diet. Low fat: Eat less fatty meat, animal offal and fried food. Low phosphorus: eat less nut foods, reduce the intake of food additives and preservatives, and the phosphorus intake should be <800mg/d in general. High-quality low-protein diet: Protein-restricted diet is an important part of treatment, which can reduce the production of nitrogen-containing metabolites, alleviate symptoms and related complications, and may even slow down the progress of the disease. For patients with chronic renal failure without dialysis treatment, the recommended protein intake is 0.6-0.8g/(kg-d). Protein intake for hemodialysis and peritoneal dialysis patients is 1.0 to 1.2 g/(kg-d). In the low-protein diet, about 50% of the protein should be high-birth-price protein, such as eggs, lean meat, fish, milk and so on. If available, the low-protein diet of 0.6 g/(kg-d) can be supplemented with appropriate amounts of alpha-keto acid preparations at the same time. No matter what dietary treatment program is applied, it is necessary to consume a sufficient amount of calories, in addition, it is also necessary to pay attention to the supplementation of vitamins and nutrients such as folic acid, as well as controlling the intake of potassium, phosphorus and so on. It is recommended to consult a nephrologist or dietitian to formulate a dietary program under the guidance of a physician for patients with renal failure.