Professor ZHANG Daning′s experience in treating chronic renal failure was introduced. Clinically

large-dose Huangqi（Radix Astragali seu Hedysari） was used to benefit vital qi and primordial qi; using insect drugs to resolve the blood stasis and unblock the collaterals. In the process of chronic renal failure

poisonous damp-heat and static blood were both pathological products and pathogenic factors. Dahuang（Radix et Rhizoma Rhei） was commonly used to eliminate damp-heat and dispel static blood and poison. Combining the traditional Chinese medicine "catharsis and depel toxin" with the western medicine "bowel clearance method"

the charcoal medicine was applied to the treatment of chronic renal failure. In clinical treatment

peel medicines such as Dongguapi（exocarpium Benincasae）

Chenpi（Pericarpium Citri Reticulatae）

and Dafupi（Pericarpium Arecae） were used to treat edema

and Hei Zhima（Semen Sesami Nigri）

Buguzhi（Fructus Psoraleae） and other black-color drugs were used to treat kidney deficiency

all of which were effective.