In western, aromatherapy uses essential oils to prevent and treat disease, and is one of the ways to stay healthy. In oriental medicine, there was also a similar medical treatment using aromatic herbs for a long ago. The exisiting research of oriental medical herbs is mainly focused on the theory of qi and flavor(氣味論). But on aromatherapy used with aromatic herbs, it is necessary to study the aromatic herbs by aroma. So "xi$ar{a}$ng p$check{u}$, 香譜" and "b$check{e}$n c$check{a}$o g$ar{a}$ng m$grave{u}$, 本草綱目" mainly contain the study about clinical effects of aromatic herbs. And "b$check{e}$n c$check{a}$o p$check{i}$n hu$grave{i}$ j$ar{i}$ng y$grave{a}$o, 本草品彙精要"?mainly explains the effects of medical herbs with five aroma classification of x$ar{i}$ng(腥), sh$ar{a}$n(?), xi$ar{a}$ng(香), ch$grave{o}$u(臭), xi$check{u}$(朽). The former one makes more clinical uses of medical herbs, and the latter one grows up the theory of medical herbs. This study is expected to have a good influence on aromatherapy and classification of oriental medical herbs.