Abstract:In order to deal with the "black swan" event and "gray rhino" incident of flood disasters in flood season, ensure that excessive flood can be measured and reported to support flood prevention and disaster reduction, the Hydrology Center of Shandong Province has prepared the pre-plan for excessive flood measurement and reporting of key rivers in Shandong. The flood magnitude, measurement and reporting scheme, safeguard measures and following disposal are carefully analyzed and repeatedly studied, and countermeasures and suggestions are put forward from the aspects of strengthening the limit thinking, overall system consideration, refining practical indicators, deepening program review, popularizing and applying new technology and equipment, etc., to provide reference for the preparation of exceeded flood measurement and reporting scheme and the development of emergency flood prediction and reporting.