This paper introduces the basic principles of queuing theory and models, and ascertains the set mode of the port handling optimal
service queuing system. Based on the one-dimensional model established by the former scholars which solves the minimal cost
of service, this paper puts forward a two-dimensional model which can confirm the minimal cost of the two indexes the optimal
handling service efficiency and facilities number at the same time. Using Delphi programming model, then solving the most
excellent service programs. And through case studies can further demonstrate the new two-dimensional model is better than the
old model to reduce the cost of handling. Providing more scientific and theoretical guidance to improve the efficiency of port
terminal handling services and reduce the cost of handling.