Abstract
In this study, we grasped flood disaster prevention knowledge contents, and analyzed between acquisition of flood disaster prevention knowledge and damage to housing by a interview survey and questionnaire survey. As the results Firstly, Flood disaster prevention knowledge was existence of the river structure, knowledge of the topography of the flood. Secondly, migrants reduced damage to housing when they acquired it more than flood prevention knowledge 4 of 12 items. Thirdly, migrants reduced damage to housing when they acquired both existence of the river structure and knowledge of the topography of the flood. On the other hand, migrants were not able to reduce damage to housing when they acquired either of existence of the river structure and knowledge of the topography of the flood.