Chronic kidney disease stage 3 is chronic kidney disease stage 3, this kind of patients can no longer achieve the purpose of cure, but only for the primary disease and complications of intervention, and ultimately to slow down the decline of renal function for the purpose. When chronic kidney disease develops to stage 3, the decline of glomerular filtration function is more serious, the renal function is less than 50% of the normal function, and there are pathological phenomena such as glomerulosclerosis, diffuse atrophy of renal tubules, and interstitial fibrosis, accompanied by mild anemia, fatigue, loss of appetite and other uncomfortable symptoms, which makes the treatment more difficult and the chances of curing are lower. The treatment of chronic kidney disease stage 3 focuses on evaluating and treating complications, including cardiovascular and cerebrovascular diseases, renal anemia, mineral bone metabolism disorders, etc., controlling the comorbidities and avoiding further deterioration of renal function. Patients should also engage in appropriate physical exercise and actively cooperate with the treatment. The treatment of chronic kidney disease is a long-term process, and patients are advised to visit the hospital regularly and be treated under the guidance of professional physicians to avoid delays.