Abstract:Objecetive: To compare the tissue formation and the content of polysaccharide between the wild Dendrobium candidum and the cultured ones and to find any existed differences.Method: Bare-handed microtomy and photomicrography;The content of polysaccharide is determined by phenol-sulphuric acid method.Result and conclusion: There are no marked noticeable differences between the wild D.candidum and the cultured ones in terms of the tissure formation and the content of polysaccharide.