Abstract: An analysis was conducted on the characteristics of ice flow in the Ningxia-Inner Mongolia section of the Yellow River and the key period of ice flow in 2023-2024. The first ice flowing date (14th November in 2023) at Ningxia-Inner Mongolia reach of Yellow River in 2023-2024 is 6 days earlier than usual, which is the earliest since 2001. The first frozen up date (15th December in 2023) is 12 days later than usual. The interval between the appearance of ice flowing and the frozen up is 32 days, which is 19 days longer than usual. In the early stage of freezing period, the river section frozen up developed rapidly, and the maximum river freezing length reached 702 km on January 28th in 2024, which is 87 km shorter than the average. The weather system that combines high-altitude and ground conditions has formed a weather process with high cooling intensity and long duration of low temperature, creating important conditions for the occurrence of the first ice storm in the Toudaoguan River section in Inner Mongolia. The study is expected to provide reference for ice forecasting and ice flood prevention decision-making at Ningxia-Inner Mogolia Reach of the Yellow River.