The present author received a Grant-in-Aid for Scientific Research (Grant-in-Aid for Research Activity Start-up) in order to create and publish a "Full-Text Database of Books on Astronomical Divination." This project converts these works into digital format, making their titles and main texts fully searchable. The present paper provides a bibliographic introduction to the books on astronomical divination surveyed in the process of compiling the database. It then discusses the significant features of the works selected as source texts for the database. Among them, the copy of Guanxiang wanzhan in the collection of the Archives and Mausolea Department of the Imperial Household Agency is believed to have been shipped from China and acquired by Tanuma Okitsugu. He subsequently donated it, in Horeki 12 (1762), to the shogunal library, Momijiyama Bunko, from which it is believed to have been transferred to the Archives and Mausolea Department sometime during the Meiji period (1868‒1912). The significance of the database is that it provides searchable, citable access to rare books on astronomical divination and permits comparative examination of differences in their methods of composition.