Abstract:Geobiontic type medicinal plants subjected to Orchidaceae family are used as important traditional Chinese medicine. Scientists are paying more attentions to their chemical components and pharmacology recently. This paper reviewed their chemical components involved in phenanthrene, bibenzene, flavone, sterol, terpenes, alkoloids and pharmacology such as antibacterium, cytotoxic activity, antihy-perliposis effects. All these information are beneficial to reveal the relative among these medicinal plants in Orchidaceae family and are helpful to develop new drugs.