中文摘要：

在回顾黄河河口研究历史的基础上，系统阐述了黄河河口水沙条件、尾闾河道演变、拦门沙演变、滨海区海洋动力、河口对下游河道的反馈影响的研究现状，并针对河口演变的新情况，提出了黄河河口研究亟待解决的新问题。

英文摘要：

With the economic development of the Yellow River delta, the government of China pays high attentions to the Yellow River estuary research, which has acquired fruitful research achievements. On the basis of a historical retrospect of the Yellow River estuary research, the research actuality of the flow and sediment condition, the evolution of tail channels, the evolution of estuarine sandbar, the feedback influences on the lower reaches brought by the evolution of the Yellow River estuary are expatiated systemically. Through aiming at the new circs of the evolution of the Yellow River estuary, the new problems of the Yellow River estuary research are put forward.