Aiming at the site selection for Taipingwan port area of Dalian Port and for the purpose of making up for the haul distance disadvantage of Dalian Port’s hinterland，solving the contradictions among the port，industry and city，conforming to the port integration orientation of Liaoning Province，promoting the revitalization of Northeast China，optimizing the transportation layout，and undertaking the industrial transfer，there exists an urgent need to carry out a planning on Taipingwan port area. Adopting the methods of qualitative and quantitative analyses，comparisons and selections，and mathematical models，we understand the characteristics of the proposed site including weak development of the shoreline，favorable conditions of wind，wave and tide，simple flow field，clear water and less sand，stable seabed，bed rock’s high bearing capacity，and favorable water depth condition，etc.，based on which，we come to the conclusion of selecting corresponding water and land area to form Taipingwan port area along the coastline from Taipingjiao to Taipingjiao southern coastline. Taipingwan port area will be an important part of Dalian Port，the crucial support for the revitalization of Northeast China and development and opening of Liaoning coastal economic belt，as well as an important carrier for the integration，layout adjustment，transformation and upgrading of ports in Liaoning Province.