Chronic kidney disease (CKD) is a common chronic disease that seriously endangers human health and requires urgent early prevention and treatment. The first step is to actively control blood pressure. Blood pressure and CKD are closely related and promote each other to form a vicious circle. Two types of antihypertensive drugs, angiotensin-converting enzyme inhibitors and angiotensin receptor antagonists, have outstanding benefits in reducing urinary protein and protecting kidney function, and have been recommended as first-line antihypertensive drugs for CKD patients. Even if the blood pressure is normal, these drugs can benefit patients. Step 2: Scientific diet The correct diet is of great significance in delaying the progression of kidney function. A quality low protein diet is a principle that needs to be followed and implemented in CKD patients, but it is very important how to master the degree of low protein. Some patients have over-restricted diets, resulting in a high incidence of malnutrition in patients. Malnutrition can accelerate the progression of renal function deterioration and seriously affect the quality of life. Scientific and effective dietary management can enable patients to maintain good nutritional status and prolong survival. As the primary disease, renal function and metabolic disorders of each CKD patient are different, we emphasize the individualized treatment of diet, and the specialist dietitian will provide systematic guidance on the diet structure of patients, especially for protein intake, salt intake and calorie intake, so that patients know clearly “what to eat, how to eat and how much to eat. “The third step is the rational application of drugs. Step 3: Rational application of drugs Although the prevalence of CKD is high, more than 80% of CKD patients are in the early stage, and very few of them do not even need special medication. However, kidney damage caused by drug abuse is common in clinical practice, and some drugs do not have a clear “kidney-protective” effect, and some “advertised drugs” and “prescriptions” may even cause further damage to the kidneys. Some drugs have no clear “kidney-protective” effect, and some “advertised drugs” and “prescriptions” can even cause further kidney damage. Therefore, it is necessary to carefully screen and follow the guidance of a regular hospital specialist.