In order to meet the demand of various scientific institutes and enterprises for simulated digestive system equipment for human or livestock, Shanghai Youdao Biotechnology Co., Ltd. has collaborated with various universities and institutes to discuss, design, and develop an in vitro gastrointestinal digestion simulation system. This device mainly starts with "real simulation" and comprehensively simulates the digestion process of the human (animal) gastrointestinal tract outside the body. Including simulation of physical digestion environment, simulation of chemical digestion environment, and simulation of microbial digestion process. By using various high-precision sensors and controllers, various physical and chemical parameters can be detected and controlled, while providing "real gastrointestinal" conditions for the growth of gastrointestinal microorganisms. The main application areas of this device include analysis of digestive and metabolic processes of food, drugs, functional ingredients, pathology, and research on intestinal probiotics.