To provide a satellite communication simulation system for satisfactorily and efficiently simulating satellite communication, and for reducing the economical load of a system evaluator.

A satellite communication simulation system is provided with two global stations constituted of a master station 4 and a slave station 5. A simulator 6 is connected with the slave station 5. The simulator 6 generates plural calls between set pseudo global stations. The slave station 5 transmits a line connection request signal for requesting the line connection of a generated call through a satellite control line 2 to the master station 4. The master station 4 receives the line connection request signal, and executes line assignment processing, and assigns a free satellite communication line 3 to the call. Thus, the simulation of the line assignment of the plural pseudo calls generated in a traffic simulator 6 can be attained by using the satellite line set between the two global stations. Therefore, a call loss rate can be evaluated by the small number of global stations and in a form close to an real operation system.