Professor LYU Renhe，a master of traditional Chinese medicine(TCM)，specializes in the treatment of kidney disease with TCM.Based on years of clinical experience，he divided chronic kidney disease into three stages：early，middle and late stage.Polyporus Umbellatus is one of the most commonly used traditional Chinese drugs in the clinical practice of Professor LYU Renhe.Professor LYU's application of this medicine includes the clinical thinking of the combination of Chinese and western medicine，treating symptoms and focusing on the cost，and is different from the common use of Polyporus Umbellatus by most doctors.The paper tries to summarize professor LYU's experience of applying Polyporus Umbellatus in different stages of chronic kidney disease.