The value of an ancient medical book depended on its content, historical background, preservation, and other factors. If the book recorded ancient medical knowledge and techniques or contained precious or rare medical information, it might have a high value. In addition, if the book was well-preserved and handwritten in some ancient period, it could also be a precious cultural relic. However, for an ancient medical book, not recognizing the real handwriting might have a certain negative impact on its value. Therefore, it was suggested that the book be appraised to determine whether the words in it were in line with the writing habits and styles of the time to assess its value.