This report forms a part of the studies on the farmhouses in Fukui-prefecture. We invastigated 34 farmhouses in various parts of Fukui prefecture. The date of farmhouses we invastigated extends from the 17th century to the 19th century. The first step to our investigation on the farmhouses is to know their original plan and constraction when they were first built. Next we tried comparing the plan and constraction in one place with them the other places. As the result of these studies we have found that the farmhouses in Fukui prefecture are grouped five types in style and form. The farmhouses that belong to first group are widely distributed in the Eehizen plains, the mountainaus district of Niu and these conected valley. The plan of these farmhouses are "Hiroma" style. The farmhouses that belong to the other four groups are distributed in the mountianaus distrct (Ohno-sanchi, Imadate-sanchi and East and West Wakasa district). The farmhouses that belong to the other four groups have their own features.