ABSTRACT
<p><b>OBJECTIVE</b>To establish a public health risk assessment indexes for flood disaster.</p><p><b>METHODS</b>Delphi method and expert consultation were used to establish the public health risk assessment index system and scoring criteria, and the analytic hierarchy process (AHP) method was used to obtain the weight of the indexes. Then, the established index system was applied to evaluate the public health risk of the flood disaster in Anhui province, 2016.</p><p><b>RESULTS</b>A public health risk assessment system consisting of 5 categories and 17 indexes was constructed. The assessment result of the flood disaster in Anhui province of 2016 showed that the public health risk score was 0.26, suggesting that "the health emergency measures were effective, and the public health risks were effectively controlled".</p><p><b>CONCLUSIONS</b>The established indexes can effectively assess the health risk of flood disaster and also can provide the reference for other disaster assessment.</p>