Panax Notoginseng and its analogues such as Gynura Segetum, Boussingaultia Gracilis and Curcuma Longa are indentified via Raman spectra technique. The characteristic Raman spectra of Panax Notoginseng and its analogues are acquired, then they are indentified by laser Raman spectroscopy and second derivative Raman spectroscopy. The structural information indicates that Panax Notoginseng and its analogues contain some carbohydrate substrates, due to some characteristic vibration peaks of carbohydrate moiety, because 1330, 1040, 943 and 310 cm-1 characteristic absorption peaks can be observed．The characteristic vibration peaks at 1080 cm-1 and 1120 cm-1 indicate the existence of saponin compounds. Chrysanthemum Notoginseng shows characteristic vibration peaks at 820, 899, 1144 and 2935 cm-1 because of the presence of b-sitosteroland, pyrrolizidine alkaloids compounds and long chain aliphatic compounds. The characteristic vibration peaks at 1462 cm-1 and 1695 cm-1 appear in Rattan Notoginseng spectroscopy, because of the existenence of adenosine compounds and uracil compounds． The characteristics vibration peaks of Rhizoma Curcumae Longae, such as 962, 1187, 1433, 1596 and 1630cm-1can also be observed due to some curcumin compounds. The difference of absorption peaks between Panax Notoginseng and its analogues can be used to distinguish them. Finger spectroscopy of Panax Notoginseng and its analogues can be further established, the identification results can be further verified via second derivative Raman spectroscopy. The above method can be easily used to provide a more accurate, direct and fast identification of Panax Notoginseng and its analogues.