Abstract: Following the major decision of the Party Central Committee on carbon peaking and carbon neutrality goal and the plan of comprehensive national transport network construction, the transport industry must accelerate development of green transport. Shenzhen, as a model city in carbon emission control, has been making great effort to implement the new development concept in construction of the collection and distribution system for Shenzhen hub port. The impact of traffic growth associated with port operation on environment of the city has been a problem of great concern. The solution is proper organization of the traffic. This paper presents an optimized freight collection and distribution system for the port. In the system, the port is set as the hub, the dedicated railways form the framework and the logistic stations operate as the node of the network. With the transport network, the seamless connection of multimodal transport flow and effective transport power coordination can be achieved.