Daijokan was the highest organ of state power presiding over eight ministries of Nakatsukasasho, Shikibusho, Minbusho, Jibusho, Hyobusho, Gyobusho, Okurasho, and Kunaisho (Injikanrei).
太政官は中務省、式部省、民部省、治部省、兵部省、刑部省、大蔵省、宮内省の八省を統括する最高機関である（因事管隷）。