Dendrobium and Dendrobium officinale differ greatly in the number and content of alkaloidal components, but in terms of the same chemical composition, Dendrobium officinale is of good quality. The world's best dendrobium is basically produced in Huoshan County, Anhui Province, wild dendrobium efficacy of the best, the two well-known domestic dendrobium brand Tongrentang and Fulinmen are from the above origin, if it is to give gifts, choose Tongrentang dendrobium more appropriate; if it is their own family members want to use, choose Fulinmen dendrobium more affordable.