A digital controlled interleaved Boost Power Factor Correction(PFC) converter is presented with the method of average current control based on the DSP of TMS320F2812. The control algorithm and the improved sampling algorithm with 150 kHz/phase switching frequency are put forward. The voltage and current double closed-loop digital control circuit are analyzed and executed PI compensation design. The modeling and simulation is performed by Matlab/Simulink for interleaved Boost PFC numerical control system. A 300 W output power of the prototype of the Boost PFC control system is implemented and verified.