Diabetic nephropathy is a common complication of diabetes mellitus, clinically characterized by proteinuria, progressive renal impairment, hypertension, edema, and severe renal failure in advanced stages, and is one of the major causes of death in diabetic patients. As the saying goes, people are food-oriented, and diet has a direct impact on diabetes, so it is important to control diet for diabetic nephropathy treatment. The diet of diabetic nephropathy patients should take care of the treatment needs of both diabetes and nephropathy. 1, high quality low protein diet Generally speaking, the amount of protein intake should be decided with reference to the patient’s blood creatinine level and endogenous anhydride clearance rate. The higher the blood creatinine level and the lower the endogenous creatinine clearance rate, the stricter the protein intake control. Specific practices are: minimize the intake of vegetable protein, which contains non-essential amino acids and is a poor quality protein, generally less soy products should be eaten, appropriate restrictions on staple foods, such as white flour, rice, because staple foods also have a certain amount of vegetable protein, can be supplemented with milk, eggs, fish, lean meat and other animal protein, in particular, milk, egg protein is appropriate. Animal protein contains essential amino acids and is high-quality protein. 2, diet regular ration diabetic nephropathy patients can be three meals a day or four meals. The calorie distribution of three meals is 1/5 for breakfast, 2/5 for lunch and dinner, and 1/7 for breakfast and 2/7 for the other three meals. 3. Limit salt and water When patients have edema or hypertension, salt intake should be limited, not more than 3 grams per day; water, the correct intake should be the previous day’s urine output plus 300-500 ml to keep the weight basically constant. In addition, the diet should be high in fiber and low in phosphorus, with appropriate calcium and vitamin supplements.