Abstract: In order to improve the efficiency of flood management, strengthen the emergency command ability, and minimize the disaster losses, this paper aims at the problems existing in the previous weekly inspection and monthly test work, through the construction of weekly inspection and monthly test digital management system, based on the example application analysis. The research shows that the digital management system of weekly inspection and monthly test can strengthen the early warning of flood control and drought relief, and carefully sort out the hidden danger found in the inspection, make clear the rectification measures, and effectively eliminate the hidden danger. Advanced technologies such as big data and Internet of Things are used to digitize system management, data reporting analysis and information recording in flood control and drought relief management, providing powerful decision-making basis and intelligent analysis and summary for flood control and drought relief work.