Abstract
The Aim of this research is for the indication of a reorganization method for the living environment in Sanriku village decreasing population by Tsunami disasters. At first it gained perspective on the living environment with documents, field and interview investigation. In second it focused the Momonoura, Ishinomaki-City and made the chronological table and actor network diagram with documents, field and interview investigation to analyze the changing of them. In third it studied the future of the living environment including recovery plan from the Great East Earthquake. Finally it clarified a reorganization method for the living environment.