Abstract:As an important organ for digestion and absorption, intestinal tract is the largest immune organ of human body and plays a very important role in maintaining normal physiological activities. With the diversification of human diet, more attention has been attracted about the impact of intestinal flora on health. Intestinal microecology is related to more than 50 diseases including immunity, metabolic system diseases, tumors and so on. There is no doubt that diseases can also affect the human intestinal flora. Baizhu powder is a prescription mainly composed of edible medicinal plant materials, which can improve the intestinal microecology, invigorate spleen and replenish Qi, promote the secretion of saliva or body fluid and reinforcing the stomach, to achieve the purpose of maintaining human health. In recent years, many clinical studies and animal experiments have made remarkable progress in the treatment of intestinal flora disorders related diseases with Baizhu powder. This paper summarizes the mechanism of Baizhu powder on intestinal microecology, in order to provide some theoretical and experimental basis for clinical research on Baizhu powder in the treatment of intestinal related diseases.