To provide a slide cover lock device capable of making an automatic locking system and also preventing malicious crimes such as damage with a drill by solving such a problem that much time is consumed for a conventional locking of a lock device installed on the door panel of a dispenser.

An opening, a guide rail 5, and a lock storing part 6 are provided in a cover base 1 fixed to a panel D, and a lock 17 having an exposed key hole is provided on the side surface of the lock storing part 6. An eccentric pin is installed on a joint rotated integrally with the rear shaft of a rotor 21 of the lock 17, and an energized latch both 34 is installed in the direction projected from the side surface of the lock storing part 6. An engaging hole 39 in which the eccentric pin is inserted is provided at one end of a connector plate 37, and a shaft 38 inserted into the hole of the latch bolt 34 is installed as the other end. Then a locked part 13 engaged at all closed positions with the latch bolt 34 in a strike 12 provided on the inner surface of a slidable slide cobrt 3 along the guide rail 5 of the cover base 1.