The utility model relates to a short circuit current limiter optimal configuration system, including on -line monitoring equipment, the real -time data library facilities, data processing equipment, from line number according to the library facilities, load flow calculation equipment, sensitivity analysis equipment, object function generates equipment and display device, the real -time data library facilities is connected to on -line monitoring equipment, data processing equipment is connected to the real -time data library facilities, data processing equipment connects from line number according to the library facilities, connect load flow calculation equipment and display device from line number according to the library facilities, sensitivity analysis equipment and display device are connected to load flow calculation equipment, sensitivity analysis equipment is connected object function and is generated equipment, load flow calculation equipment is connected to object function formation equipment. Reach the optimization parameter of short circuit current limiter through the optimal configuration to the short circuit current limiter, convenient to use, save the plenty of time, reduce repeated work load and improve work efficiency, be favorable to the safety and stability and the economic nature of electric wire netting.