Two dihydropyranocoumarins were isolated from the root of Peucedanum wawrii and the structures were established as 3'(R)-acetoxy-3',4'-dihydroxanthyletin (1) and 3'(R)-acetoxy-4'(S)-angeloyloxy-3',4'-dihydroseselin (2), respectively, by spectroscopic methods. The absolute configurations were deduced by chemical correlations with known compounds.