This paper describes the simulation study which evaluates operation plans of container terminal. The operation plans of container terminal consist of berth plan, load plan, unload plan, yard plan, and equipment plan. It is discussed how to apply the simulation method to evaluate those plans that are interrelated with each other. This paper also deals with the assignment and coordination problems of container-handing equipment such as container cranes, transfer cranes, yard tractors, and trailers used in the transportation of containers. Simulation analysis is bases on data about plans from the operation planning system through an interface program. It is discussed what we should got the statistics about container-handing equipment in the simulation.