The energy coordination between main lightning protective components is an important issue in the combined Surge Protective Device(SPD).The principles of Gas Discharge Tube (GDT),Metal Oxide Varistor (MOV),and Transient Suppression Diode (TVS) are analyzed theoretically,and then the three kinds of components were combined in parallel connection,and tested by impact experiments,in accordance with the specifications and requirements of IEC62305 and GB50343—2010.The results show that reasonable parallel combination of different SPD components has a significant effect on improving the overall response rate,shortening the action progress time,increasing the flow capacity and limit voltage level.The conclusions have practical values for the design of combined SPD.