In order to improve the performance of galloping piezoelectric wind energy harvester，a curved bluff body design with the aerodynamic performance improvement possibilities is proposed，and the aerodynamic performance of the curved bluff body is further improved through wings and additional end caps. Through FLUENT simulation and experimental research，the influence of curved wings and additional end caps on the aerodynamic performance of curved bluffers fluid is revealed. Simulation and experimental results show that the wings and additional end cap curved surface can significantly improve the aerodynamic and energy capture performance of the galloping piezoelectric wind energy harvester，and effectively broaden its working wind speed range.