This study intends to discuss the knowledge and information resources which Korea and Japan has produced about each other for the period of 1901~2000. To this end, we collected comprehensively the monographs produced by each country, and built a database named as “Korea-Japan Knowledge Information System.” Using this database, we analyzed the present state and characteristics of the monographs with a special emphasis on the publication period and subject. Also identified was the relationship between the production of monographs and the Korea-Japan relations from a historical perspective. Finally suggested was the establishment of a national information system for the effective management of the produced monographs.