His literary works are "Kanke Bunso," a collection of prose poems in a total of 12 volumes (900), "Kanke Koshu," a collection of literary works created while he was at Dazaifu (c. 903), and "Ruiju Kokushi," which Michizane wrote and edited.
著書には自らの詩、散文を集めた『菅家文草』全12巻（昌泰3年、900年）、大宰府での作品を集めた『菅家後集』（延喜3年、903年頃）、編著に『類聚国史』がある。