Multi-electrode spark plug and spark plug cap combined structure for motorcycle

The utility model discloses a multi-electrode spark plug, which comprises a steel cylindrical spark plug housing. An insulating porcelain body is arranged in the spark plug housing, more than two discharge poles in the axial direction are arranged separately in the insulating porcelain body, the discharge end of each discharge pole extends out of the inner segment of the porcelain body, the inner end of the spark plug housing is equipped with lateral electrodes in the same amount of the discharge poles in correspondence with the discharge ends of the discharge poles, and the input end of each discharge pole is connected with a conductive rod. The utility model also discloses a plug spark and plug spark cap combined structure. A spark plug cap can be inserted with the spark plug in a direction parallel with a cylinder wall; and compared with multiple bridge-type central electrodes connected with only one high voltage circuit, ignition energy is reliable, and ignition in multiple points is stable, thereby reali