The invention relates to a spark plug sensor which comprises a high pressure connection terminal, an insulator, a glass sealant, a central electrode, a grounding electrode, and a shell. The insulator is arranged at the lower end of the high pressure connection terminal. The shell is sleeved outside the insulator. Resistance powder arranged inside the insulator, the glass sealant, and the central electrode are connected and arranged in sequence at the lower end of the high pressure connection terminal. An insulating ceramics is arranged at the lower end of the central electrode, a metal ring conductor is sleeved on the insulating ceramic, and gaps are formed between the insulating ceramic and the grounding electrode which is arranged on the lower portion of the shell. A piezoelectric ceramic is arranged on the insulator, and a piezoelectric ceramic motor is arranged on the piezoelectric ceramic. The structure of a spark plug is changed, the spark plug sensor is realized based on the fact that performance of the spark plug is guaranteed, dynamic performance, startup performance, economic performance, exhaust emission, and environmental-protection performance of an automobile are improved, and the spark plug sensor plays a certain positive role for effective utilization of resources.