The Kanazawa Bunko is a library of samurai built in the Kamakura era by a member of the Hojo family (Kanazawa Hojo), who was built in the residence of Rokuuraso Kanazawa (currently Kanazawa Ward, Yokohama City) in Kurakura-gun, Musashi Kunikura. It is not clear when it was founded, but it is thought to be around the first year of Kenji (1275) in the later real time. The contents of the collection are diverse, including politics, literature, and history, and the collection policy has been inherited for three generations: Tsukiji, Sadaaki, and Sadasho, and the collection has been enhanced. Hojo Kanazawa was destined for the destruction of the Kamakura Shogunate in 1333 (1333), but since then, the library has been managed by the adjacent Meiji-ji Temple of the Bodhi Temple and has reached the modern age. The current Kanazawa Bunko was reconstructed as a facility in Kanagawa Prefecture in 1930 (Showa 5), and since 1990 it has been active as a medieval history museum. Prefectural Kanazawa Bunko conveys the valuable cultural assets that convey the various aspects of the Kamakura era to the future, presents the results of its surveys and research through exhibitions and lectures, and plays a role as a base for everyone's lifelong learning. We are doing activities to fulfill our goals.