Intestinal probiotics are a group of active microorganisms that are beneficial to the host. They are a general term for active and beneficial microorganisms that are colonized in the human intestine and can produce definite health effects, thus improving the host microecological balance and playing a beneficial role. The main beneficial bacteria in the intestine are Clostridium casei, Lactobacillus, Bifidobacterium, Actinobacillus, Yeast, and so on. In addition, some of the most powerful probiotics studied in the world are mainly the composite active probiotics composed of the above types of microorganisms, which are widely used in the field of bioengineering, food safety and life health, and are very beneficial to the human body. It is worth noting that these live probiotics, in the human body when taking as much as possible not to take antibiotics, but also pay attention not to take with too hot water, so as not to affect the efficacy.