The utility model relates to an arc extinguishing coil tune controlling means, technically characterized by comprising a one-chip microcomputer module, an arc extinguishing coil present inductance current monitoring module, an arc extinguishing coil tune control signal output module, a communication module, and a power supply module, wherein the power supply module is connected with other modules for providing power supply; the one-chip microcomputer module is connected with an arc extinguishing coil optimization system via the communication module for receiving the optimal inductance current value output by the arc extinguishing coil optimization system; the one-chip microcomputer module is used for monitoring the present inductance current of the arc extinguishing coil in a real-time manner via the arc extinguishing coil present inductance current monitoring module; the one-chip microcomputer module is used for judging the optimal inductance current and the present inductance current; and the arc extinguishing coil tune control signal output module is connected to the tune arc extinguishing coil tune mechanism for realizing the tune control function of the arc extinguishing coil. The arc extinguishing coil tune controlling means features reasonable design, and realizes rational tune control function, with a more reliable and accurate tuning process.