Abstract: This paper briefly introduces the performance of seismic electromagnetic radiation instrument of lation analysis of a large amount of data shows thar the interferely electic signs of thunder-lighting and magnetic storm in the air,meteorologic factors of tempreture and precipitation are not obvious inter-frence factors on seismic electromagnetic radiation of electrode.The extra strong thunder-lighting in low air in the local rrea and turning on/off large-scale electric equipments around the electrode may cause an interference,but it can be distinguished and eliminated.