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莱州湾西南部沿岸,西起神仙沟口,东至胶莱河口,海岸线长288km,区内发育了宽达数公里至十几公里的潮间浅滩,是典型的淤泥质平原海岸。陆域淄脉沟以北为现代黄河三角洲,岸线迅速向海淤涨;淄脉沟以东为潍北平原,系冲积海积而成,岸线缓慢向海淤进。两区分别隶属东营市与潍坊市。黄河是流经境内的最大河流。另外还有小清河、弥河、白浪河等十几条中小河流经本区入海。这些河流入海口位置的变更和入海水量沙量的增减,都直接关系到岸线的进退。从地质构造上看,本区处于长期沉降的济阳凹陷,堆积有巨厚的松散沉积,其沉积厚度自西向东变薄,东部有著名的郯庐断裂带,而胶莱河又是沉降区与东部鲁东隆起区的分界线。
Along the southwest coast of Laizhou Bay, from the west to the Shenxian Mizou and east to the Jiaolai Estuary, the coastline is 288 km long. An intertidal shallow beach with a width of several kilometers to more than ten kilometers is developed in the area. It is a typical silt plains coast. Land Ziguanggou north of the modern Yellow River Delta, the coastline quickly rise to the sea silt up; east of the Ziguangou Weibei Plain, Department of alluvial and seabed, the shoreline slowly silted into the sea. Two districts belong to Dongying City and Weifang City. The Yellow River is the largest river flowing through the territory. In addition there Xiaoqing River, Mi River, White River and a dozen small rivers flowing into the sea via the area. Changes in the location of these rivers into the sea and the increase or decrease in the amount of sediment into the sea are directly related to the advance and retreat of the coastline. From the geological structure point of view, the area is in the long-term settlement of the Jiyang sag, a huge accumulation of loose sediments, the thickness of sediment thinning from west to east, the eastern part of the famous Tan-Lu fault zone, and the Jiaolai River is the settlement And eastern Ludong uplift of the dividing line.