In order to solve the problem of single wind direction acquisition of wind-induced vibration energy harvester, an airfoil baffle is added at the other end of the cantilever beam based on the vortex induced vibration of the cylinder. The sensing direction of the airfoil baffle drives the cylinder to rotate to change with the change of wind direction. The airfoil plate can also flutter under the excitation of wind energy to improve the vibration efficiency of cantilever beam. The rotating part of the wind energy harvesting device is simulated by using the Solidworks, and by changing the wind speed, the pressure and the intensity of pressure on different positions of rotating parts in the fluid are analyzed to ensure that the device can work normally in the natural environment.