Neutral herbs belong to a kind of Chinese herbs whose bias is not significant and the property is between cold and hot. This term is relative to the partial herbs and it is objective. The authors put forward that the property of neutral herbs are mild

insignificant

neither cold nor hot

harmonious

combination according to syndromes and wide application. The authors hold that the function characteristic of neutral herbs is not mild and neutral herb could be aimed to the diseases and to reverse the diseases. According to the function characteristic

the authors summarize that neutral herbs could be divided into two types. Some neutral drugs have mild property and efficiency

most of them are tonics and they taste sweet

while other neutral drugs also have mild property but the efficiency is drastic and they taste pungent

bitter or sour. Chinese herb property theory is the basis guiding Chinese physicians to use herbs. So it is of certain significance to clinical treatment to clarify the property of neutral herb.