Along with the development of energy-saving and environmental protection of the port,the port has become the research focus of energy-saving.Taking Nanjing port as the research object,we establish the evaluation model of Nanjing port concerning energy saving and emission-reduction based on the analysis of the situation of energy-saving & emission-reduction in Nanjing port and applying the matter element analysis method and the analytic hierarchy process,and get the effect about the evaluation of energy-saving of Nanjing port.According to the conclusion,we put forward the suggestions and measures about energy-saving of Nanjing port.