【摘要】 现代学者多将大禹治水视为中国历史上的神话传说。本文先引天文资料证明距今４０００年前后确因九星地心会聚引发了各种自然灾害。在这些灾变中，尤以洪水为大。再引地理、考古资料证明此次洪水在黄河下游地区实为距今４０００年前后的黄河南北改道，而改道又加剧了洪水泛滥。然后勾稽历史文献，从典籍中寻求黄河改道的线索。更多还原

【Abstract】 Abstract The Modern scholors generally regard Dayus watercontrol project as a legend instead of historic factBy the data of uranology,the author firstly demonstrates that there were quite a lot of natural disasters about 4000 years ago caused by the nine planets in the solar system moved into one line,and among these disasters,floodwater was the most serious oneSecondly,with the new discoveries of the geographic and archaeological works,the author demonstrates that the canal of the Yellow river was changed by the floodwater,and as a inverse function it pricked up the influence of the floodwater againFinally,the author provide some historicgeographic data to support his opinion of the change of the Yellow rivers canal更多还原