The invention provides a voltage feed-forward circuit, a multiplier provided with the voltage feed-forward circuit, and a power factor correction circuit provided with the multiplier. The voltage feed-forward circuit is applied to the multiplier and is used for maintaining and outputting the peak voltage of an input voltage. The voltage feed-forward circuit comprises a first switching element, a logic control unit, a second switching element, a third switching element and a second capacitor. According to the technical scheme of the invention, the stability of the power factor correction circuit and the response speed of the circuit to the input voltage are improved. Meanwhile, the linearity of the multiplier and the accuracy of the output current of the multiplier are improved.