Locking device of high-voltage switch cabinet

The utility model provides a locking device for a high-voltage switch cabinet, which relates to the technical field of locking devices and comprises a box body, a locking part and a lighting part, a door plate is mounted on the box body in a sliding manner; the right end face of the box body is fixedly connected with a mounting base through bolts, and two fixing rods are symmetrically welded to the mounting base. Through the arrangement of the locking part, two sliding seats are elastically and slidably connected to the seat body, and a locking rod is rotatably connected to the two sliding seats in a limiting manner; the locking rod is of a cylindrical rod-shaped structure, and a key hole is formed in the head end of the locking rod, so that the confusing effect can be achieved through the key hole, non-staff mistakenly think that rotation opening is achieved, and the problems that firstly, an existing device is easily opened by non-staff at will; and secondly, when an existing device is maintained at night,