The present invention discloses a frequency-variable golden beauty bar, the frequency-variation golden beauty bar includes a beauty bar body, and a circuit board arranged in the said the beauty bar body, wherein, the circuit board includes: a control module, configured to convert a voltage variation into a frequency variation; an enable module, configured to receive a signal of the frequency variation and control a motor rotating speed; the control module connects to the enable module. The frequency-variable golden beauty bar as provided in the present invention, makes it possible to adjust an adjustable potentiometer through a knob on a tail part, and decide the voltage variation of the adjustable potentiometer through an MCU chip, then convert it into frequency variation, followed by controlling the vibration frequency of the motor through a high frequency MOS transistor, thus achieves the frequency variation of the beauty bar.
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