The purpose of this paper is to consider the directionality of the joint use organization of agricultural machines in large-scale paddy fields in Hokkaido as a case study of the A association in Naganuma town. The characteristic of the A association is that the machinery that they own is one harvester unit, which contributes to an inexpensive utility rate. Secondary, operation plans that consider individual farms are prepared for each crop. Thirdly, it operates in a large area of the district. It is concluded that the joint use organization of agricultural machines requires a cooperation involving a wide area beyond districts, which responds to crop rotation farming that many farmers will take up in the future.