In order to realize the purpose of environmental energy conversion based on piezoelectric materials, a generating device was designed which could use wind energy to drive multiple piezoelectric patches vibration. The impeller revolving of the device was driven by wind energy, then the torque force of the revolve impeller was utilized to vibrate piezoelectric patches, finally the energy generated from piezoelectric patches were supplied for the load after rectifying, store and DC DC convert. The power generation performance of piezoelectric patches were tested in different conditions，the experimental results showed that the device could collect and convert environmental energy by multiple piezoelectric patches, providing a reference for the design of such device, and new methods for environmental energy collection technology.