This research is a case study in the Shih-Jyy City to understand local retailers’ hazardous perception for flooding disaster through the face-to-face questionnaire investigation. Results showed that most retailers seem that local flooding condition is more severe gradually. The government and building companies should be responsible for the flooding disaster. Respondents rank three higher points caused severe flooding in the study area, including unclearness of sedimentation on river bed, occupation of floodplain by buildings and levees, and malfunction of drainage system inside city during stormy typhoon. Although most respondents support engineering of flooding improvement, however, they have pessimistic attitudes for flooding disasters in the future. Most respondents pay for attentions on the weather forecast, but they are less willing to buy flooding insurance. In addition, female are easier to fear flooding disaster than male. Adults more agree to prohibit land development severely than younger and elder respondents. Finally, retailers with higher education have greater willing to buy flooding insurance.