To address the changes in port-area energy systems and multi-stakeholder benefit structure caused by the high proportion of distributed energy access, this paper proposes a bi-level coordinated optimization strategy for port-area electric energy considering multiple stakeholders. First, the energy system architecture of the port area is introduced, and the coordination game process among various stakeholders is analyzed. Second, a bi-level coordinated optimal scheduling model for port-area electric energy is established. The upper-level decision-maker is the government, which minimizes the overall cost at the lower level by formulating appropriate carbon tax policies. At the lower level, a master-slave game is formulated between the port group and shipowners, where the port group acts as the leader and the shipowners as followers. Cost minimization is achieved by adjusting electric energy supply and demand, and a game equilibrium is reached when the supply and demand are balanced. Then, the equilibrium conditions of the master-slave game model and the specific solution method for the bi-level coordination model are analyzed. Finally, three schemes are compared and analyzed through case studies, which verify the economy and environmental protection of the proposed method, providing reliable guidance for formulating coordinated strategies of “power dispatching-carbon tax formulation-shore power pricing”.