A power factor correction converter and a control method are disclosed. A power factor correction converter includes a power conversion module, a capacitor, a third switch unit, and a fourth switch capacitor. The power conversion module includes a first switch, a second switch, a first switch unit, a second switch unit, and an inductor. The first switch is coupled to a first input terminal. The second switch is coupled to a second input terminal. The first switch is coupled between an output terminal and the first switch. The second switch is coupled between the output terminal and the second switch. The inductor is coupled between the first and the second switch unit. The capacitor is coupled to the output terminal. The third switch unit is coupled between the second input terminal and the capacitor. The fourth switch unit is coupled between the first input terminal and the capacitor.