Chronic kidney disease (CKD) stage 3 is not a stage of kidney failure. Chronic Kidney Disease (CKD) is defined as abnormalities in the structure or function of the kidneys caused by various reasons greater than or equal to three months. Clinically, chronic kidney disease is categorized into five stages according to the index of glomerular filtration rate, of which usually stage 4-5 belongs to the chronic renal failure stage, therefore, chronic kidney disease stage 3 is not the renal failure stage. The main clinical symptom of chronic renal failure is systemic multi-system abnormality, which can be manifested as loss of appetite, nausea, elevated blood pressure, cardiac arrhythmia, headache, dysphoria and other discomforts. In addition, patients will also have water electrolyte and acid balance imbalance. Generally, timely treatment can slow down the progression of the disease and improve the quality of life. Chronic Kidney Disease stage 3, with slowing down the progress of CKD, assessing and treating complications as the standard of treatment. Therefore, it is recommended that patients with chronic kidney disease stage 3 should consult regular hospitals in time and standardize the treatment under the guidance of physicians.