Dendrobium is a commonly used herbal medicine with relatively calm effects and no clear contraindications. It is sweet and slightly cold in nature and has the effect of benefiting the stomach and generating fluid, nourishing yin and clearing heat. Do not use it if there is no obvious patient with yin deficiency and fluid deficiency. In addition, people who are allergic to dendrobium should not use it. In the clinic, dendrobium is often used in the herbal soup mainly for nourishing yin, mainly for the treatment of fever and injuring yin, dry mouth and thirst, stomach yin deficiency, less food and dry vomiting, as well as diseases such as deficiency of heat after illness, yin deficiency and fire, bone steam and labor heat, tendon and bone impotence and softness. Dendrobium itself has the effect of nourishing yin and nourishing fluid, and has certain curative effect on diseases of yin deficiency and fever, such as dry throat, thirst, hot flashes, dry cough and menopausal syndrome, malignant tumor after radiotherapy, etc. Dendrobium is a relatively common Chinese medicine, with the effect of generating fluid, nourishing yin and clearing heat. There is a special species of Dendrobium, called Dendrobium iron skin, because the skin is iron green and named, the current supply of the herb market is mainly relying on artificial cultivation to provide. Because this species is more difficult to grow artificially, the cost is also higher, so the price is slightly expensive. Ordinary dendrobium and iron dendrobium in the role and efficacy of the difference is not too big, if the economic conditions, you can buy iron dendrobium use; if the general situation, as treatment and health care, ordinary dendrobium can, not necessarily need iron dendrobium.