Taking the development of an overall plan for Beibu Gulf Port as an example，this paper discusses the ideas and methods of integrating the concept of green development into all aspects and the whole process of the overall planning of ports.Shoreline utilization planning should give due consideration to avoiding and keeping away from environmentally sensitive areas.The proposition of a hierarchical port area layout system should follow green development and other principles.Ecological and environmental factors deserve more attention in the layout of transportation systems for important cargo types.The optimization of plane layout schemes for ports should be in compliance with various principles，such as mitigating environmental impact and improving resource utilization efficiency.The planning of collection and distribution schemes should lay emphasis on coordinating port and urban traffic organization and adjusting transportation structure.The chapter on environmental protection should reinforce the guidance on green port development.The research idea of this paper can serve as a reference for the development of an overall plan for a port under the new development concept in the new development stage.