In the process of a flood disaster, a lot of disaster information which are weather forecast, river information and so on are informed to residents. However, residents do not necessarily acquire their information actively. Therefore, from the viewpoint of communication of disaster information, formation of resident's intention to acquire disaster information is important. In this study, we analyze the situation of resident's intention to acquire disaster information and its effect on their crisis consciousness and action for mitigation in the process of the flood. Moreover, we analyze the determination factors of intention to acquire disaster information, and we consider the condition that residents acquire disaster information actively.