On the basis of on-the-spot survey,in reference to historical literatures,contrasting topographic maps,and with the help of the materials obtained from observation and surveying,the article makes a special effort to elaborate the development of the coast in Yaneheng area after the Huangbe River shifted northward,reveals the difference of the development between northern and southern coasts in the area, and analyzes its cause and predicts the tendency of the develoment of the coasts.The origin of the artiele is to present some information for exploitation of the coast zone.