To meet the self powered requirements of the sensing monitoring system in the wind environment,an indirect excitationpiezoelectric wind power generator(PWPG)based on the oscillation of the cylindrical bluffbody is proposed.The vortex inducedvibration of bluff body is used to indirectly excite the piezoelectric transducer in the sealed cavity by the magnets to vibrate and generate electric energy.The system structure and working principle are introduced,and theoretical and experimental studies are carried out to prove the feasibility of principle.The research results show that the output voltage and lock-in bandwidth of frequencyfor PWPG can be adjusted by changing the flexible beam length,coupler mass and transducer mass.Moreover,there is an optimalexternal load resistance to maximizing the output power ofPWPG.