Probiotics have the effect of regulating and promoting gastrointestinal motility, regulating intestinal flora, and promoting digestion and absorption. Probiotics are a class of active microorganisms that are beneficial to the host by colonizing in the body and changing the composition of the flora in a certain part of the host, and the human body can play a role in regulating the balance of intestinal flora, preventing and treating diseases by adding the number of foreign bacteria that are beneficial to the human body. Probiotics can colonize the intestinal tract after intake, promote gastrointestinal motility, maintain the balance of intestinal flora structure, and play an important role in the growth, development and health of the host. Probiotics can synthesize digestive enzymes and participate in the digestion of nutrients in the intestinal tract, promoting the absorption of nutrients in the intestinal tract. Common probiotics include Bifidobacterium bifidum, Bacillus licheniformis, Lactobacillus spp. The scientific and rational use of probiotics is beneficial to the micro-ecological balance of the human body, which is beneficial to the health of human beings and the enhancement of immune function. It is recommended to consume probiotics under the guidance of a doctor, do not use medication without authorization, so as not to damage your health. In daily life, you should eat more fresh fruits and vegetables, eat less spicy and stimulating food, ensure sufficient rest time, do not overwork.