The invention provides a 
traditional Chinese medicine used for treating renal failure and a preparation method thereof. The 
traditional Chinese medicine comprises following raw materials, by weight, 30 to 60 portions of raw astragali radix, 10 to 30 portions of raw 
rehmannia root, 10 to 30 portions of prepared 
rehmannia root, 10 to 30 portions of Chinese yam, 5 to 20 portions of 
angelica sinensis, 10 to 30 portions of radix pseudostellariae, 10 to 30 portions of 
eucommia ulmoides, 10 to 30 portions of 
loranthus parasiticus, 10 to 30 portions of 
polygala tenuifolia, 10 to 30 portions of poria cocos, 10 to 30 portions of 
rheum officinale, 5 to 20 portions of safflower 
carthamus, 4 to 8 portions of licorice, 10 to 30 portions of radix cyathulae, 10 to 30 portions of herba epimedii, 10 to 30 portions of radix dipsaci, 10 to 30 portions of rhizoma atractylodis macrocephalae, 10 to 30 portions of fried fructus aurantii and 30 to 60 portions of 
serissa serissoides. The results of more than 110 clinical experiments show that: effective rate of the 
traditional Chinese medicine in treatment of renal failure reaches to 82%, and 50% of the patients treated by using the traditional Chinese 
medicine are on the mend obviously. No toxic or 
side effect is caused by the traditional Chinese 
medicine, and the traditional Chinese 
medicine is capable of improving renal failure significantly. In addition, the traditional Chinese medicine is low in cost, is easy to prepare, can be popularized in the folk, and is capable of reducing medicine burden of patients.