The implementation ofthe Belt and Road Initiativestrategy is important for building a new pattern of regional opening up basis,and is of significance to foster the development of new industries along the line,expanding new space of marine economic development.At present,there are few studies on marine economic development in the current situation,especially on the study of the underdeveloped western coastal areas in China.And there is lack of the guidance of the planning theory for the harmonious developmen...