The purpose of historiography is chiefly to preserve historical records. For a long time, the omissions and errors in the Draft Ch’ing History (Ch’ing-shih kao) were attributed to a lack of careful editing that resulted from its hasty publication. In 1914, the project to compose and compile the dynastic history of the Ch’ing was launched with the Peking government’s formal establishment of the Ch’ing Historiographer’s Office (Ch’ing-shi kuan). Founded on the basis of the former Historiography Institute of the Ch’ing, the new institute was intended to follow the traditional historiographic practice employed in compiling the dynastic history of the Ming. In 1927, the project was competed and the text was published. The entire process spanned a period of fourteen years and involved the labor of over one hundred people. Therefore, the conclusion that the flaws within the text of Draft Ch’ing History were the result of its rushed publication appears specious and lacks persuasiveness. Many of the Draft Ch’ing History manuscripts from Ch’ing Historiographer’s Office were published in book form as the Draft Ch’ing History. Some, however, were not. In other words, the present text to the Draft Ch’ing History does not included all of the records originally complied by Ch’ing Historiographer’s Office as part of the Draft Ch’ing History project. These unpublished manuscripts include a large corpus of annals, treatises, tables, and biographies; as well as the first second, and yellow silk cover editions the Ch’ing History. A large number of the manuscripts compiled by the Ch’ing Historiographer’s Office have been ignored and forgotten because they were not included in the Draft Ch’ing History. When we discuss the Draft Ch’ing History, we should not over-generalize. Due to the fact that the historical manuscripts of Ch’inig Historiographer’s Office were complied by a large number of people, some are more reliable than others. These should be assembled and published as an addendum to the Draft Ch’ing History, which could be entitled the Supplement to the Draft Ch’ing History (Ch’ing-shih kao pu-p’ien), and studied alongside the Revised and Annotated Edition of the Draft Ch’ing History (Ch’ing-shi kao chiao-chu). The main purpose of this essay is to explore the compilation and historical value of the unpublished annals, treatises, tables, and biography manuscripts of the Ch’ing Historiographer’s Office. A thought understanding of this abundant corpus of original manuscripts will greatly benefit the compilation of the large-scale Ch’ing History.