An effective, practical and advanced functional module of military medical service operation system was developed by combining military, logistics, health service theory and technologies of system engineering, computer simulation, digitalized map and multi-media. The functional module of the system could be used for regional disposition of military medical service force and for rapid exercise of military medical service commands. The functions of the system included terrain analysis, information retrieval, calculation and forecasting, document drafting, picture management and information transmission. It can be used not only for daily training of military medical command, but also for military medical commanding at emergency and non-battle military actions, enhancing the efficiency in accomplishing various military medical service disposition.