针对目前国内洪灾损失评估体系尚不完善的问题,利用ArcGIS软件及无源淹没算法获取洪灾淹没面积和水深分布,基于已有统计资料绘制辽河流域农村房屋及室内财产洪灾水深损失率曲线,结合淹没水深,查取相应损失率,建立了洪灾损失评估模型,并对法库县三面船镇农村房屋及室内财产进行了洪灾损失评估。结果表明,该方法有效、实用,为决策者确定防灾减灾目标及制定防灾减灾决策提供了重要科学依据。 Aiming at the problem that the system of flood damage assessment in our country is not perfect at present, this paper uses ArcGIS software and passive submerging algorithm to get the flood submergence area and water depth distribution. Based on the existing statistical data, draw the flood loss rate curve of rural houses and indoor property in Liaohe River Basin, Water depth, access to the corresponding loss rate, the establishment of a flood damage assessment model, and Faku County San Mian town of rural housing and indoor property flood damage assessment. The results show that the method is effective and practical, which provides an important scientific basis for decision-makers to determine the objectives of disaster prevention and reduction and to make disaster prevention and mitigation decision-making.