Abstract:Objective: To search for new effective hypotensive components from the Chinese folk drug, the root of Pimpinella thellungiana.Method: A new compound was isolated from etheral extract of the drug by chromatographic method and idetified by physical, chemical and spectroscopic methods. Result: The compound has been identified as 2-(1′,2′-dihydroxy)propyl-4-methoxy phenol. Conclusion: The compound was obtained from the root of P. thellungiana for the first time.