Dendrobium officinale has a high clinical medicinal value mainly in the stem, which is beneficial to the stomach and generates fluids (nourishing the stomach by replenishing fluids in the stomach), nourishing yin and clearing heat (nourishing yin essence and clearing away heat), and the flower has no obvious medicinal value. Dendrobium belongs to a kind of traditional Chinese medicine, and the dried stems of Dendrobium orchidum are usually chosen for clinical use as medicine. Dendrobium can play the role of benefiting the stomach and generating fluids, nourishing yin and clearing heat in the clinic. Therefore, it is mainly used for the symptoms of dry mouth and thirst, liking cold drinks caused by heat disease and fluid injury, as well as the symptoms of low food and easy to vomit, dry mouth, easy to be hungry, not wanting to eat and drink, night sweating (abnormal sweating after going to sleep, and sweating stops after waking up) caused by insufficient gastric yin (deficiency of yin and essence in the body, and hyperactive deficiency and fire) and the symptoms of bone vaporization and laborious heat, dark and unclear vision and impotence of tendons and bones caused by deficiency of yin and heat (loss of yin and essence in the body, and hyperactive deficiency and hyperactive deficiency and fire). The current adverse reactions and contraindications of this drug are not clear, and it is recommended to consult a doctor before using the drug.