This thesis focuses on the design and implementation of a two-phase interleaved boost power factor corrector (PFC) to achieve high power factor, low input and output current ripple and high efficiency. The UCC28060 is used as the control IC for the PFC and integrate two boost PFC converters. In addition, the voltage and current ratings of the power components, the volumes of inductors and output capacitors and EMI filters can be reduced. Besides the theoretical and design analysis, an 800W two-phase interleaved Boost PFC is implemented. By waveforms and experimental data, the correctness of the circuit is verified.