Abstract
Many infrastructure buildings have been performed in Japan, the community which exited there was lost by urbanization or the change of social structure. However, the direction of development change in recent years. It focused on the life satisfaction and the local community in Maebashi Soja area. The results were as follows; (1) It was to clarify the factors of life satisfaction and the local community. (2) It was to clarify the structure model of the relation of the life satisfaction and the local community. However, it wasn't clarify the structure model of the relation of evaluation on Tenguiwa irrigation canal and directivity to town planning of Soja area.