According to analys is of ¹H-NMR spectra of respective etherial extracts of the roots, three wild Peucedanum analysis of species, P. decursivum(Miq. ) Maxin, P. quangxiense Shan et Sheh and P.mashanenseShan et Sheh, should be grouped into Peucedanum denartvum (Miq. ) Maxim. type, since they all contain Linear-type mumarins. The results showed that the NMR spectra analysis were is a quick, simple and reliable method for identification and studies on chemotaxonomy of Chinese crude drug Peucedanum ("Qian-Hu").