His major works include "Kaiko" (Thoughts on the Meaning of Poetry), "Manyoko" (The Study of Manyoshu), "Kokuiko" (Thoughts on the Meaning of the Nation), "Noritoko" (Thoughts on Rituals), "Niimanabi" (New Studies), "Buniko" (Commentary on Literature), "Goiko" (Five Ancient Matters [Literature, Poetry, Nativism, Language and Writing]), "Kanjiko" (The Study of Poetic Epithets), "Kagurako" (Thoughts on Shinto Songs) and "Genji Monogatari Shinshaku" (New Interpretations of The Tale of Genji).
主な著書に『歌意考』『万葉考』『国意考』『祝詞考』『にひまなび』『文意考』『五意考』『冠辞考』『神楽考』『源氏物語新釈』などがある。