The command and control system, as the “central nervous system” of the military combat forces, directly affects the combat effectiveness of the troops and plays a vital role in the success or failure of the combat. Based on the characteristics and requirements of military command, this paper constructs a simulation control system for military command based on a system dynamics model. It discusses the setting of relevant essential parameters. Simulation system analysis results show that the red side uses the simulation system for command business processing times to obtain an advantage in military combat. The military combat victory was achieved by losing about one-third of the combat force (333C) on the 29th day. In addition, the rate of military coordination in the simulation system is positively proportional to the number of correctly arranged combatants, and the rate of military intelligence collection has a more significant impact on the completeness of the development of military command programs in the initial period. The simulation system proposed in this paper can meet the needs of military command and control systems.