Abstract:Through the review of Dingdong Reservoir's prevention and response to extreme low-temperature rain and snow freezing weather, the paper analyzes the potential safety hazards comprehensively caused by low-temperature rain and snow freezing weather to the operation of reservoir dam, pumping station and pipeline, and puts forward corresponding countermeasures from the aspects of organization, management and engineering technology, in order to provide reference for other plain reservoirs to encounter similar extreme weather.