A power child lock operating device comprising: a rotating drive device; a first operating lever which receives torque from the rotating drive device to be rotated; a second operating lever coupled to the first operating lever to be moved with the first operating lever; a third operating lever coupled to the second operating lever and configured to be connected to a door catch to lock or unlock the door catch; an inside handle lever configured to be connected to an inside handle disposed at a door of a vehicle to be moved with the inside handle; a fourth operating lever coupled to the second operating lever and selectively connecting the inside handle lever and the third operating lever; and an elastic member coupled to the third operating lever and the fourth operating lever and biasing in a predetermined direction so that the third operating lever is configured to be connected to the inside handle lever, wherein the rotating drive device is a drive motor configured for rotating in a first direction or a second direction, wherein a worm is formed at a motor shaft of the drive motor; wherein a worm gear engaged with the worm is provided in the first operating lever, wherein the worm gear is formed at a first end portion of the first operating lever; wherein a first protrusion is provided in a second end portion of the first operating lever; wherein a shaft hole, into which a pin is inserted so that the first operating lever is configured to rotate with respect to the pin, is formed between the first end portion and the second end portion of the first operating lever, wherein a hook having an accommodating groove that wraps around and couples the first protrusion of the first operating lever is provided in a first end portion of the second operating lever, wherein a second protrusion coupled to the fourth operating lever is provided in a second end portion of the second operating lever; wherein a slot is formed between the first end portion and the second end portion of the second operating lever; and wherein an assemble pin is inserted into the slot to couple the second and third operating levers and the inside handle lever. a rotating drive device; a first operating lever which receives torque from the rotating drive device to be rotated; a second operating lever coupled to the first operating lever to be moved with the first operating lever; a third operating lever coupled to the second operating lever and configured to be connected to a door catch to lock or unlock the door catch; an inside handle lever configured to be connected to an inside handle disposed at a door of a vehicle to be moved with the inside handle; a fourth operating lever coupled to the second operating lever and selectively connecting the inside handle lever and the third operating lever; and an elastic member coupled to the third operating lever and the fourth operating lever and biasing in a predetermined direction so that the third operating lever is configured to be connected to the inside handle lever, wherein the rotating drive device is a drive motor configured for rotating in a first direction or a second direction, wherein a worm is formed at a motor shaft of the drive motor; wherein a worm gear engaged with the worm is provided in the first operating lever, wherein the worm gear is formed at a first end portion of the first operating lever; wherein a first protrusion is provided in a second end portion of the first operating lever; wherein a shaft hole, into which a pin is inserted so that the first operating lever is configured to rotate with respect to the pin, is formed between the first end portion and the second end portion of the first operating lever, wherein a hook having an accommodating groove that wraps around and couples the first protrusion of the first operating lever is provided in a first end portion of the second operating lever, wherein a second protrusion coupled to the fourth operating lever is provided in a second end portion of the second operating lever; wherein a slot is formed between the first end portion and the second end portion of the second operating lever; and wherein an assemble pin is inserted into the slot to couple the second and third operating levers and the inside handle lever.