He wrote books including "Honcho Jikki" (Imperial court fact record), "Heike Monogatari Ko" (A study on the Tale of the Heike), "Nonomiya Nikki" (Diary of Sadamoto NONOMIYA), "Gunki Ruikan" (Record of historical matters of Kamo-jinja Shrine), "Sadamoto Kashu" (Collection of waka poems by Sadamoto), and "Niino Mondo" (Ohaku Mondo [Arai - Nonomiya dialogue]).
著書に『本朝実記』『平家物語考』『野宮日記』『群記類鑑』『定基歌集』『新野問答』等がある。