[Examining the publications <i>Su Wen Ji Wen and Su Wen Kao</i>].

<i>Su Wen Ji Wen</i> and <i>Su Wen Kao</i> are representative works of Chinese medicine located in the textual research school in Japan. However, the authorship of <i>Su Wen Ji Wen</i> had not been confirmed, and the relationship between the two books was still confusing. This paper examined the manuscript of <i>Su Wen Ji Wen</i> collected by the Taipei National Palace Museum and <i>Su Wen Kao</i> emendated by Qian Chaochen, and explored the life experience of Nakano Gengo, the author of <i>Su Wen Ji Wen</i> and Kijou Koukan, the author of <i>Su Wen Kao.</i> It can be identified that Nakano Gengo is the author of <i>Su Wen Ji Wen</i> because it was written from his lecture notes when he attended to the lecture <i>Su Wen</i> instructed by Taki Motoyasu. His book <i>Su Wen Ji Wen</i> was completed between 1780 and 1788. It was found that Taki Motoyasu was not a student of Kijou Koukan and did not plagiarise his work. It was also found that the two books were indirect interpretations of the early research of Taki Motoyasu on <i>Suwen.</i> They have important value for the textual research school of Japanese kampo medicine.