This paper is an analysis of the structural transition of wooden storehouses in the area around Mt. Yatsugatake. A few types of the structural characteristics can be seen in the same village, and in the same area. In previous studies, it was found that these types of the structural transition were caused by the development of lumbering techniques and changes in the way pine wood was used in the area. First we researched the distribution of wooden storehouses in this area and their details and found out that there were five types of structural characteristics among them. Second, we analyzed each type according to the characteristics of their walls: their lumbering techniques and the length of wood pieces and concluded that the structural types were decided on by a method to build a long wall according to lumbering techniques, We also found that there were some differences in the way of fixing pillars between eastern areas and western ones around Mt. Yatsugatake.