A three phase power factor corrector in continuous current mode is introduced. The control equations are deduced and realized by Integrate reset controller. The integrate reset controller is composed of a integration with reset,a RS flip-flop and a comparator,which is very simple. The integrate reset controlled three phase power factor corrector has these characteristics as follows: Constant frequency operation, which is of advantage of the design of filter;the control circuit is simple and no need for multiplier;The result of simulation proves the correction of theory analysis.