Five compounds$(I{sim}V)$ were isolated from the roots of Peucedanum terebinthacem growing in Korea. Compounds I, IV and V are ${eta}-sitosterol$, bergapten and umbelliferone, respectively. IR and NMR spectra of compounds II (mp. $190^{circ}$) and III(mp. $111{sim}120^{circ}$), both white needle crystalls, indicate that compounds II is a furocoumarin and that compound III, yielding decursinol upon saponification, is a pyranocoumarin.