Sparking plug

The utility model discloses a sparking plug, including the sparking plug body, this internal center electrode that is equipped with of sparking plug, this center electrode's below is equipped with a plurality of transition electrodes of single or series connection, the transition electrode is fixed by the ceramic mount of connecting rather than the cooperation, the bottom of sparking plug body is equipped with the lateral electrode of the ceramic mount that can stabilize. The utility model discloses preparation simple process, low in manufacturing cost, easily realize, and transition electrode firm in connection is difficult for droing, can influence center electrode's insulating nature and the thermal diffusivity of piston, and sparking plug's clearance sets up scientific and reasonable, improve the power of engine, fuel, gas consumption are few, and gaseous emission measures and lacks long service life.