When an object flies in the air, or the object is stationary in the flow of gas, the gas flows related to the object, and the flow of the kinetic energy makes the turbine rotate. Thus the forces generated by the turbine rotation can be used to make the piezoelectric vibrator vibrate, and conduct the conversion of mechanical energy and electrical energy to generate electricity. The electrical energy can be storied through the bridge rectifier circuit and the storage circuit, after be stabilized, the electrical energy can be supplied to some circuits. Science the frequency of the air flow is uncertain, the principle and characteristics of the piezoelectric vibrator to produce electricity are studied in the non resonant environment, the feasibility on the piezoelectric vibrator to produce electricity as the power to the circuit is tested and verified, the structure of the generator is designed. Simulation and experimental results show that the use of forced vibration of the piezoelectric vibrator can ensure to produce electricity. The piezoelectric generator used this principle has the features of no pollution, less moving parts, stimulating in a short time and easy to be miniaturized.