Fiber reinforced polymer composites (FRPs) are being increasingly used for a wide range of engineering applications owing to their high specific strength and stiffness. However, there through-the-thickness performance lacks some of the most demanding physical and mechanical property requirements for structural applications, such as aerospace vehicles and military components. Charpy impact test was done on end notched specimens of cross-plied glass fiber reinforced epoxy resin (GFRP) composites. Alumina and flyash particles were added in the epoxy resin with the weight ratio of 2.5%. The effect of notched length and fillers on dynamic performance of GFRP composite was obtained. Finally, SEM images were used to explain the changes in mechanical properties.