The contraindications of the Chinese medicine dendrobium are as follows: 1. Pregnant women had better not eat dendrobium, so as not to cause pregnancy-related discomfort, or even affect the development of the fetus. 2. For specific ingredients, do not apply with dendrobium, such as cinnamon sticks, mint and other dispersing Chinese medicine do not eat, then do not eat radish, and laxative Chinese medicine, like rhubarb, mannite also do not eat. 3. The amount of dendrobium must be small, not Too large, otherwise it will lead to poisoning appearing peri-convulsions and even affect the life threatening. There are many contraindications of dendrobium, clinical application is best under the guidance of doctors, reasonable distribution of the use of dendrobium, for the combination of Chinese medicine should also try to discretion.