Objective To optimize the processing technology of roasted Aucklandiae Radix by multi index comprehensive score combined with box-behnken design(BBD)response surface methodology.Methods The appearance character,volatile oil,costunolide and dehydrocostuslactone of the roasted Aucklandiae Radix were taking as the comprehensive evaluation indexes.The BBD response surface method was used to investigate the number of tile layers,paper simmering temperature and paper simmering time,select the best processing parameters,and verify the optimized proces...