In view of the fact that certain control measures should be taken when LNG ships enter and leave the port,which is obviously exclusive,appropriate LNG terminal size should be determined when laying out LNG terminals,so as to ensure the efficiency of navigation of all kinds of ships in the port area.Based on the multi-agent simulation of complex system modeling method,this study establishes different simulation scenarios with the case study of Liuheng port area in Ningbo Zhoushan Port,and through analysis of specific indicators for evaluation,the reasonable scale of LNG terminal on the south side of Liuheng port area is determined under certain navigation control measures,which can provide a basis for port layout decision and rational use of shoreline.