In this research, to investigate how to construct and commonly use private old document DBs in Korea, analyzed are:ⅰ) the processing and construction of private old document databases; ⅱ) the problems and the methods of improving those DB systems; and ⅲ) the common use of these DBs. Results form this research are as follows: The compilation of a nationwide bibliography of private old documents was first started by Kukhakjaryobojonhye(國學資料保存會) and the Bureau of Cultural Properties(文化財管理局), and the union catalog of nine volumes (韓國典籍綜合目錄) was published from 1986 to 1997. The National Library of Korea, Korean Studies Advancement Center, The Academy of Korean Studies, the National Institute of Korean History, and Muncheongak have constructed and utilized their own databases of bibliographies, annotations, and images and texts of old documents.In these databases, there were some common problems such as the inaccuracies of cataloging description, nonstandardized use of KORMARC formats and description rules, the errors in inputting texts, including the omissions of characters and texts, and the difficulties of linking and searching DBs. To settle these problems, some alternative plans are suggested as follows: First, KORMARC format and description rules(draft) for archives should be revised to adopt a new standard such as KS editions, and all the institutions involved should thoroughly follow the standards, when creating bibliographic records and digitizing texts. Finally a government organization tentatively called “KOBIN” should be established to supervise all the procedures of creating records, building the integrated document databases and its union catalog, developing technology for sharing digitized resources, training the specialists, and cooperating with the related international organizations and institutions.