Coptis chinensis, a perennial herb of Ranunculaceae, is used as medicine by its rhizome. Coptis chinensis is bitter in taste and cold in nature. It has antipyretic, fire-clearing and vomiting-relieving effects. It can be used to treat high fever, boredom, dysentery, diarrhea, vomiting, wind-fire red eyes, whooping cough and other diseases of acute fever. Coptidis Rhizoma has the effect of cooling blood and detoxifying, and can be used for diseases such as heat toxicity, bloated furuncle, etc. Taking a small amount of Rhizoma Coptidis can strengthen the stomach, while taking too much will lead to bitter cold and gastric failure, which will lead to indigestion.