Dendrobium polysaccharide is the main active ingredient in the genus Dendrobium, and has the bio?logical activities of anti?oxidation, immune regulation, anti?inflammatory and reducing the blood sugar level and so on,, which has broad development prospects. In this paper, the Dendrobium polysaccharide physico?chemical properties, digestion and absorption mechanism, extraction process, main physiological functions and its potential application value in animal production were reviewed in order to provide references for better devel?opment and utili...