The Yellow River is one of the most seriously-affected areas where the melting ice flood disasters often take place. The source area of the Yellow River is the research gap of ice-slush..Based on analyzing the meteorological and hydrological data of the Yellow River source area, this paper selected three representative cross sections, summarized main characters of the ice regime. It then analyzed the dates of freeze-up and break-up of the river ,and the change rule of the largest ice thickness in winter.The result shows that the freeze-up goes from upstream to downstream.The dates have delaying trend,but the total number of freeze-up days is decreased and the largest ice thickness each station in winter is different. meanwhile the break-up process goes on the contrary.The main influence factors of ice regime are air temperature, average flow in winter witch can be taken as forcast factors to further research.