This study aim to clear up the determinative factor of motive that non-farmer resident participates for conservation action of Irrigation Water Wheels (IWWs). According to analysis, the factor in which influences the motive the most is knowledge about information of IWWs where one is career in this area, another is status of utilization in Japan. However, there is a difference at the level of the influence between residents who were born in local and others. Residents of local birth values knowledge about information very strongly while residents of not-local birth values knowledge about information as much as desire.
