The invention discloses a single inductor bridgeless APFC circuit based on an IGBT module, and the circuit comprises an AC filter capacitor C1, a first IGBT module S1, a second IGBT module S2, an inductor L, a first power diode D1, a second power diode D2, a third power diode D3, a fourth power diode D4, a DC filter capacitor E1, a first divider resistor R1 and a second divider resistor R2; the anode of the first power diode D1, the first end portion of the AC filter capacitor C1 and a collector electrode of the first IGBT module S1 are connected with a power supply fire wire; the anode of the fourth power diode D4, the second end portion of the AC filter capacitor C1 and the collector of the second IGBT module S2 are connected with a power supply zero line; the emitting electrode of the first IGBT module S1, the first end portion of the inductor L and the cathode of the second power diode D2 are connected; and the emitting electrode of the second IGBT module S2, the second end portion of the inductor L and the cathode of the third power diode D3 are connected.