In order to solve the problem that the single piezoelectric energy harvester cannot meet the large power supply demand of some microelectronic devices, the fluid-solid-electrical coupling simulation of piezoelectric energy harvester array based on vortex-induced vibration was carried out in this paper, and the simulation results were compared with the wind tunnel experimental data. Firstly, the energy harvester structure of the front choke was tested to verify its feasibility, and then the piezoelectric energy harvester structure in series, parallel, staggered and rectangular arrays were studied. The simulation and experimental results showed that the piezoelectric energy harvester array increased as a whole with the increase of wind speed, and increased at first and then decreased with the increase of spacing. The diameter D of the energy harvester of the front choke was 0.02 m, and the peak output voltage was 4.35 V when the wind speed was 6 m/s and the center distance was L=5D, the rectangular array had the best power generation performance, and the peak output voltage was 9.98 V when the wind speed was 6.5 m/s and the center distance is L=1.5D. The results indicated that the piezoelectric energy harvester array had certain advantages over the single piezoelectric energy harvester, which provided a reference for the research of piezoelectric energy harvesting based on vortex-induced vibration.