The subject innovation relates to a child protective door lock opening and closing device, and the open-close switch 10 provided at a predetermined position of the driver's seat, and the ECU (20) for determining and outputting a control signal to open / close signals of the on-off switch, the ECU to the normal and reverse rotation by the control signal consists of a driving means for slide guiding a child lock knob, the drive means according to the rotational direction of the drive motor 30, the driving motor 30 is driven by control of the ECU child consists of a rack gear 40 for reciprocating the lock knob (1) it is possible to open and close the door by a simple switching operation in the room.
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