The invention belongs to the technical field of power distribution network neutral point grounding modes, and particularly relates to parallel operation equipment and method for an arc suppression coil and an active intervention arc suppression device. Parallel operation of the arc suppression coil and the active arc suppression device is realized, and the equipment comprises a primary device anda secondary device. A 10 kV bus in the primary device is connected to a grounding transformer, and the arc suppression coil is connected to a common point of the grounding transformer; in a power substation, the active intervention arc suppression device is used for grounding the A, B and C phases of the 10 kV bus through a split-phase switch respectively; the capacity of the grounding transformerand the capacity of the arc suppression coil meet 10% requirement of system capacitance current overcompensation, the compensation mode of the arc suppression coil is a preset mode or a following setting mode, and the setting mode is continuous compensation or subsection compensation; and the grounding response time of the active intervention arc suppression device is smaller than or equal to 30ms. The current at fault points can be quickly transferred, the capacitance current of the active intervention arc suppression device is reduced, the advantages of the two devices are sufficiently synthesized, and the operation reliability and safety of a power distribution network are guaranteed.