Abstract: This paper briefly introduces the background, tasks, processes and main working methods of the integra-tion and review of flash flood disaster survey and evaluation results in Guangdong Province, and summarizes the results of flash flood disaster investigation and evaluation in 80 counties. The survey results are basically com-plete, and the main results of the analysis and evaluation are basically in line with the local actual conditions. Sug-gestions are put forward to resolve the problems founded in the process of review, which can provides reference for the participating units of flash flood disaster prevention and control projects.