The toxicity of traditional Chinese drug is the basic characteristics of it.There are various reasons of toxicity unspecifieation in processing drugs, excessive dosage, unfit compatibility, individual difference, and so on.According to the causes of producing the toxicity of traditional Chinese drag, the methods of detoxification have fit processing drags and compatibility, prolonging time of the decoction, differentiation of symptoms and signs medication and prudent using "local folk preseriptiorn, simple recipe, proved recipe " and so on..Established scientific concepts of the toxicity of traditional Chinese medicine, we can not only believe that the traditional Chinese drug is non-toxic blindly, but also exaggerated its.Therefore, correct knowledge of the toxicity of Traditional Chinese medicines can entirely reduce or avoid toxic incident.