It is the overlapping reg-ion of round-the-Bohai economic region and the Yellow Rivereco-nomic band and an important gate between the two large economic districts of North East and the Central plains both in the sea and on the land.

• 北靠京津塘经济区，南连山东半岛，经济开发区，是环渤海经济区和黄河经济带的结合部，也是海陆连接东北和中原两大经济区的重要通道。