Michinaga's diary between the age of 33 and 56 is called "Diary of Mido-Kanpaku" ("Diary of the Hojo-ji Temple Regent"), and 14 volumes written by himself and 12 volumes that were transcribed are kept at Yomei Library in Kyoto.
道長の33歳から56歳にかけての日記は『御堂関白記』（『法成寺摂政記』）と呼ばれ、自筆本14巻、書写本12巻が京都の陽明文庫に保存されている。