Abstract: Dendrobium nobile Lindl was a precious traditional Chinese medicine with a long history of medicinal application.It had been found in modern research that it contains many chemical components such as sesquiterpenoids,stilbenoids,flavonoids,and polysaccharides,among which sesquiterpenoids were reported more.It was represented by a special structure of picrotoxane,and it was also found that the D. nobile had physiological functions such as neuropotection,immune regulation and anti-tumor.Therefore,this article summarized the researches on sesquiterpenoid compounds in D. nobile,providing a certain reference for further studies.

Key words: Dendrobium nobile, sesquiterpene, chemical constituents, pharmacological activity