In view that the construction of traditional port enterprise information system failed to meet the information security requirements in the area of mobile internet,we study the port enterprise information security architecture under the new situation.Adopting hierarchical analysis of network security to improve and reconstruct the traditional port network hardware architecture and information system software architecture,we obtain a new port information system security architecture system,which meets the integrated security processing requirements of the front-end,intermediate processing end,and the background of the port enterprise information system.