Abstract:In China, Chinese herbs have been used to promote health status and prevent diseases for a long history. Most of the herbs are administered orally, then metabolized and absorbed in the gastrointestinal tract. After they enter gastrointestinal tract, the herbs meet gastrointestinal bacteria and exert effects on microbial community, resulting in affecting the health status of animals.This paper summarized the effects of Chinese herbs on gastrointestinal bacteria.