An embodiment of the present invention provides a sine wave frequency scanning device for driving a mass spectrometer, and relate to the technical field of terminals. The device comprises a micro-control unit, a signal output module and a broadband high-voltage amplifier. The micro-control unit is used for obtaining the preset sine wave data from the terminal and transmitting the sine wave data to the signal output module. The signal output module is used for receiving the sine wave data and converting the sine wave data into a sine wave voltage signal after receiving the conversion signal sent by the micro control unit and transmitting the sine wave voltage signal to the broadband high-voltage amplifier. The broadband high-voltage amplifier is electrically connected to an ion trap mass analyzer for amplifying the sine wave voltage signal into a high voltage sine wave signal and transmitting the high voltage sine wave signal to both pole plates of the ion trap mass analyzer to supply the two pole plates with the RF voltage of sine wave frequency scanning. In the embodiment of the present invention, power consumption is reduced by the above-mentioned sine wave frequency scanning device.