The purpose of this study considers the 4 Major Rivers Maintenance Project based on ‘Technology' and ‘Dwelling' from Martin Heidegger's theory. There are four spatial types on the Project for ecosystem restoration that are the construction for flood control, water purification area, wildlife habitats and waterfront for cultural activities. Ecological statuses of man are the devastator, restorer, and bystander. However, the point of Heidegger's view was that the ecological status of man may be granted only the status as orderer of standing-reserve. It gives commands to Nature incessantly. Man in the midst of objectlessness is nothing but the orderer of standing-reserve. Modern technology is the highest stage of misrepresentation of the essence of human being. Heidegger's theory was clearly that technology carries us outward from ourselves and drives man to dwell unpoetically. But he believed that we are capable of dwelling poetically on the earth by acquiring the measure with ‘Kindness'. His theory has great implications for us, having to concern about ecological restoration within the environmental aesthetic, because he considered man's dwelling as the essential goodness of human nature beyond the sudden sight of beauty.