Abstract: There are six species in Dendrobium (Orchidaceae)in Henan Province: D. hancocki Rolfe; D. candidum Wall. ex Lindl. ; D. moniliforme (L.)Sw.; D.flexicaule Z.H. Tsi, S. C. Sun et L.C.Xu; D.Huoshanense C. Z. Tang et S.J.Cheng and D. Henanense J. L. Lu et L.X. Gao. This paper has recorded the ecological environment, biological characteristics and reproduction methods of the Genus, and offered some suggestion about protection, development and rational utilization of these plant resources according to the actual situation of locality.