Abstract: Modeling and simulation of molten iron transport system are studied to develop a tri-layer intelligent simulation model. Based on OOCPN, a model of state evolvement is also developed available to the working position at the bottom layer, and the layer of scheduling is driven by the layer of simulation process control. The message transfer mechanism communicates well with the relation between state transition and simulation strategy efficiently. The intelligent decision-making behavior of dispatcher and engine driver in actual system is simulated efficiently by the expert systems for scheduling and collision avoiding decisions, which are both designed conceptually using hierarchical and carefully checked scheduling schemes. The results show that the intelligent simulation model developed provides a practical solution for the modeling and simulation of a transport scheduling system.