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High-frequency response wireless vibration sensors are indispensable signal acquisition equipment in the field of predictive maintenance of mechanical equipment. At present, wireless vibration sensors commonly used in mechanical equipment monitoring applications have a low frequency response, which limits their application in the field of mechanical equipment predictive maintenance. In order to further improve the frequency response bandwidth of the wireless vibration sensor, a method to improve the frequency response range of the wireless vibration sensor is proposed. The method is compared with the traditional four aspects: structure design, vibration probe circuit design, signal conditioning link design and analog-to-digital converter design. The wireless vibration sensor has been improved. The experimental results show that the wireless vibration sensor bandwidth improvement method increases the frequency response bandwidth of the wireless vibration sensor by 7.96dB. It has strong practicability in the field of vibration monitoring and has guiding significance for the field of smart sensor manufacturing.