Al-Ti-C master alloys used as grain refiners of the aluminum and its alloys have been prepared by self-propagating high-temperature synthesis (SHS) technology. The influence of pressure, diameter and preheating temperature of green-pellet on combustion temperature (T_c) during preparing Al-Ti-C master alloy and the microstructure of synthesized product has been investigated. The results show that synthesized master alloy consist of Al, Al_3Ti and TiC, and green-pellet pressure and preheating temperature have remarkable influence on combustion temperature (T_c) and microstructure of synthesized product. However, in this study, the influence of green-pellet diameter is unapparent.