This paper deals with some results of the restoration works on the ancient paddy field pattern called the Jori System, a grid-pattern land development, in the middle-northern part of the coastal area, Fukushima Prefecture.In this coastal area, the farmers suffered big losses from the bad crops because of the cold weather in 1905.In 1906, the land readjustment was inforced upon most paddy fields in order to relieve the farmers.Ancient paddy fields in this system were restored by reffering to the old land-register maps available, which were made in 1883.It may be said that there were not many gridiron fields of the Jori origin in the lowlands in the coastal area.Ancient paddy fields in this system were restored both on the left side of the Mano River and on the right side of the Maida River. They were located in the backmarshes.In the Namie town, there are the grid-pattern rows along the roads, for this town has been built on the site of the ancient paddy field, with a grid-pattern land development.In the lowland of the middle part of the coastal area, there are grid-pattern paddy fields in the left side of the Yamada River, and in the right side of the Tomioka River.Coast line of the both areas has rapidly retreated, while the gridpattern paddy fields on the sea shore had disappeared at the east of the coast line.