Abstract:The management of water courses in mountain regions is critical to flash disaster prevention system, which constitutes an integrated defense system with non-structural measures. The project of National Comprehensive Management Planning for Small and Medium-Sized Rivers,Strengthening Dangerous Reservoirs and Flash Disasters Prevention,include 42 mountain creeks management projects for Liaoning Province. However, it is difficult to complete the annual investment plan and finish constructions due to long winter across the flood season and short construction period in Liaoning province. In this paper, the experiences on preliminary work, bidding, site construction, quality management and project acceptance are summarized. This study provides reference value to ongoing flash management projects.