Objective : The purpose of this study is to determine the origin of Aquilariae Lignum. Method : Firstly identify the production areas of Aquilariae Lignum and its trading status with China in Chinese history through Chinese historical books such as Twenty-Five Histories(二十五史) and the records of the Chosun Dynasty and then, compare the distribution of the genus Aquilaria in the concerned areas. Result : Since the records in the NanfangCaomuZhuang(南方草木狀) written in 304 saying that Aquilariae Lignum was produced in Vietnam and had white flowers, Vietnam had led production and trading of Aquilariae Lignum until Qing Dynasty(淸代). Even though Thailand traded Aquilariae Lignum during Qing Dynasty, however, the volume was at a low level. Aquilariae Lignum from southern Thailand, Malaysia and Indonesia was rated as low quality and low-priced because of its fishy smell and strong flavor. Conclusion : These results show that the origin of Aquilariae Lignum comes from Vietnam and this species is distinguished from the ones of Indodesia or Malaysia.