The paper has reviewed the standardization of Panax Ginseng C.A.Meyer(Asian Ginseng)and Panax quinquefolius L.(American Ginseng),concentrating on the comparison of the identification and assay of Asian Ginseng and American Ginseng between the China Pharmacopoeia(ChP)and U.S.Pharmacopoeia(USP).The recent chemical analysis research of publication on the Asian Ginseng and American Ginseng was summarized as well.