An output over-voltage protection circuit for a power factor correction controller, comprising: an off-chip compensation network, an off-chip resistive divider network, a static over-voltage detection circuit, a dynamic over-voltage detection circuit, and a comparator circuit; wherein the off-chip compensation network is coupled between the off-chip resistive divider network and the dynamic over-voltage detection circuit, the off-chip compensation network is configured to convert a dynamic over-voltage signal to a dynamic current signal and transmit the dynamic current signal to the dynamic over-voltage detection circuit, the off-chip resistive divider network is configured to detect the output voltage (V OUT) of the power factor correction controller, the dynamic over-voltage detection circuit is configured to detect the dynamic current signal and generate a dynamic over-voltage signal (DYOVP); the static over-voltage detection circuit is connected with the off-chip resistive divider network and configured to generate a static over-voltage signal (STOVP); the dynamic over-voltage signal (DYOVP) and the static over-voltage signal (STOVP) are inputted into the comparator circuit; the comparator circuit is configured to convert the dynamic over-voltage signal (DYOVP) or the static over-voltage signal (STOVP) to a voltage and compare the voltage with a reference voltage (Vref3) and output an over-voltage control signal so as to perform a dynamic over-voltage protection function; characterized in that the dynamic over-voltage detection circuit comprises an AB push-pull output stage circuit (Q5, Q7, Q8, Q9, Q11, Q12, R4, R6, R8) and a dynamic current mirror circuit (Q6, Q10, R5, R7); an input terminal of the AB push-pull output stage circuit is connected to an output terminal of an intermediate amplifier circuit in the static over-voltage detection circuit; the other end of the AB push-pull output stage circuit is connected to a bias circuit in the static over-voltage detection circuit; the bias circuit is configured to provide a constant bias for the AB push-pull output stage circuit; an output terminal of the AB push-pull output stage circuit is connected to an input terminal of the dynamic current mirror circuit, another output terminal (COMP) of the AB push-pull output stage circuit is connected to an output terminal of the off-chip compensation network, the off-chip compensation network being further connected through another end to the off-chip resistive divider network and to the static over-voltage detection circuit; thus the another output terminal (COMP) of the AB push-pull output stage circuit is also an input terminal of the dynamic over-voltage detection circuit. an off-chip compensation network, an off-chip resistive divider network, a static over-voltage detection circuit, a dynamic over-voltage detection circuit, and a comparator circuit; wherein the off-chip compensation network is coupled between the off-chip resistive divider network and the dynamic over-voltage detection circuit, the off-chip compensation network is configured to convert a dynamic over-voltage signal to a dynamic current signal and transmit the dynamic current signal to the dynamic over-voltage detection circuit, the off-chip resistive divider network is configured to detect the output voltage (V OUT) of the power factor correction controller, the dynamic over-voltage detection circuit is configured to detect the dynamic current signal and generate a dynamic over-voltage signal (DYOVP); the static over-voltage detection circuit is connected with the off-chip resistive divider network and configured to generate a static over-voltage signal (STOVP); the dynamic over-voltage signal (DYOVP) and the static over-voltage signal (STOVP) are inputted into the comparator circuit; the comparator circuit is configured to convert the dynamic over-voltage signal (DYOVP) or the static over-voltage signal (STOVP) to a voltage and compare the voltage with a reference voltage (Vref3) and output an over-voltage control signal so as to perform a dynamic over-voltage protection function; characterized in that the dynamic over-voltage detection circuit comprises an AB push-pull output stage circuit (Q5, Q7, Q8, Q9, Q11, Q12, R4, R6, R8) and a dynamic current mirror circuit (Q6, Q10, R5, R7); an input terminal of the AB push-pull output stage circuit is connected to an output terminal of an intermediate amplifier circuit in the static over-voltage detection circuit; the other end of the AB push-pull output stage circuit is connected to a bias circuit in the static over-voltage detection circuit; the bias circuit is configured to provide a constant bias for the AB push-pull output stage circuit; an output terminal of the AB push-pull output stage circuit is connected to an input terminal of the dynamic current mirror circuit, another output terminal (COMP) of the AB push-pull output stage circuit is connected to an output terminal of the off-chip compensation network, the off-chip compensation network being further connected through another end to the off-chip resistive divider network and to the static over-voltage detection circuit; thus the another output terminal (COMP) of the AB push-pull output stage circuit is also an input terminal of the dynamic over-voltage detection circuit.