The invention discloses a no bridge type power factor corrector with logical control, comprising a high frequency switch controller, a boosting inductor, a filter capacitor, two boosting transistor assemblies, two boosting diodes, two line voltage polarity detectors and two low frequency switch drivers. The two line voltage polarity detectors control the two low frequency switch drivers by signal coupling (optical coupling, magnetic coupling and the like), and the two line voltage polarity detectors and the high frequency switch controller drive the two boosting transistor assemblies by a control logic (or logic, nand logic and the like), so that the boosting inductor can release the stored energy by virtue of the channel of the two boosting transistor assemblies, intrinsic-barrier diode conduction loss can be reduced, and efficiency is improved.