[Textual research on the author of manuscript prefaces in Zhao Kaimei's version of Zhong Jing Quan Shu collected at the Library of Palace Museum in Taipei].

Zhong Jing Quan Shu (Zhongjing's Complete Book) published by Zhao Kaimei in the Ming dynasty is very important. In our understanding, the part of this book named Shang Han Lun (Treatise on Exogenous Cold Diseases) has been thought that the edition could be possibly the most similar to that of the edition of the Northern Song dynasty. Therefore, there are two manuscript prefaces found in the Zhong Jing Quan Shu collected at the Library of Palace Museum in Taipei. The message from the writer of the manuscript who owned facsimile handwritten copy of the official Northern Song large-character edition of Shang Han Lun. This is the first time to reveal that a paper record has been kept in the world now since the Ming dynasty. That is the reason why the edition has always been thought so much important to the world now. These manuscript prefaces quite often attracted the attention of the Chinese and Japanese scholars, but none of them could identify who the writer was. And after a thorough reading of the original work, investigating the inscriptions, and checking the seals, we finally identified the writer to be Xu Fang, in late Qing dynasty. The result of this study might be helpful to research the tracing of the valuable facsimile handwritten copy of the official Northern Song large-character edition of Shang Han Lun, and also would be possible to give some new ideas and make new contents of Shang Han Lun to the studies of bibliography and editions in the future.