A multi-power factor controller including k measuring units, to which k loads and a power supply path are connected, each of the k measuring units being connected with each of the k loads and measuring a power factor calculation parameter of a connected load; n condensers; n contactors, each of the n contactors including k electromagnetic contactors, connected to the k loads and one of the condensers; n relay units, each of the n relay units having k relays, respectively connected to the k electromagnetic contactors, for deciding whether to turn on or off the electromagnetic contactors; and a multi-power factor control unit for controlling a corresponding relay to turn on the electromagnetic contactor to which the first condenser and the target load are connected.