Especially, in managing the fields, Minbu-sho played a key role in dealing with various affairs related to the title to an estate, which was a by-product of the development of Shoen (manor) since the mid Heian period.
特に田畑関係に関しては、平安時代中期以降の荘園の発展とともに、それから必然的に生ずる地券関係の諸問題を扱う重要な役割を担った。