Parking lock-releasing device for vehicle

The invention provides a parking lock-releasing device for a vehicle, which is capable of improving workability in manually releasing a parking lock while ensuring sealing performance of an outer casing, and easily holding the locking released state. The locking release operation section (13) includes a base (21) having a hollow cylindrical guide portion (24) and concentrically continuous with a front end of the outer casing (11), with a female screw (24a) formed on an inner peripheral surface thereof, and an operating section body (22, 23) which is screwed via a male screw (27) formed on an outer peripheral surface thereof into the female screw (24a) of the guide portion (24), closes the guide portion (24), holds a front end of the inner cable (12), and when releasing the locking, is rotatingly operated in a predetermined direction relative to the base (21), to thereby cause the inner cable (12) to slide to be pulled in the direction away from the parking mechanism (4).