The main functions of Dendrobium nobile Lindl are benefiting the stomach, promoting fluid production, nourishing yin and clearing away heat. Traditional Chinese medicine believes that Dendrobium has no diuretic effect, and modern pharmacological research has not found that Dendrobium has an obvious effect on promoting stone excretion. Frankly speaking, in recent years, the efficacy of Dendrobium candidum, especially Dendrobium candidum, has been greatly exaggerated due to the hype of some so-called health experts and businesses.