The modeling technologies of information systems are the key technologies for military simulation system.The modeling technologies of communication system were studied and a new generalized data processing architecture was established which realized the normality and consistency of the battlefield information transmission processing storage and representation.An integrated modeling method was proposed for multi-resolution communication systems which could realize the modeling of communication networks link terminals communication nodes messaging communication plans in the military simulation.The algorithm has been applied in one naval military simulation system.The Simulation result shows that the model of communication system satisfies the operational requirements of the navy military simulation system and improves the authenticity and rationality of military simulation.