Abstract:The East Extension Waterway of Dalu Line is a key project to adapt the national transportation structure adjustment, the new development situation of the Yangtze River Delta inland container river-sea direct transport market, and optimize the collection and distribution system of Yangshan Deep-water Port of Shanghai International Shipping Center. The overview and long-term traffic volume of the East Extension Waterway Project of Dalu Line are comprehensively sorted out. The transportation economy of the East Extension Waterway of Dalu Line is further analyzed. The main research results indicate that the East Extension Waterway of Dalu Line has significant benefits in terms of transferring the containers "from highway to water", shortening the distance of direct river-sea route, and reducing the carbon emissions, which has good transportation economy.