The invention discloses a lighting device convenient to repair. The lighting device convenient to repair comprises a box body, a first bearing is fixedly connected to the inner top wall of the box body, and the interior of the box body is fixedly connected with a partition plate matched with the box body; a forward-reverse-rotating motor is fixedly connected to the inner bottom wall of the box body, the output end of the forward-reverse-rotating motor penetrates through the partition plate and extends to the upper surface of the partition plate, the output end of the forward-reverse-rotating motor is fixedly connected with a threaded rod, the outer surface of the top end of the threaded rod is fixedly connected with an inner ring of the first bearing, and a threaded ring is arranged on theouter surface of the threaded rod in a sleeving mode; and the inner ring of the threaded ring is in threaded connection with the outer surface of the threaded rod, a sliding block is fixedly connected to the outer surface of the threaded ring, and the inner side wall of the box body is fixedly connected with a sliding rail matched with the sliding block. The whole lighting device convenient to repair is conveniently repaired by a repairing worker, the situation that winged insects are attached to the outer surface of a lamp body in the hot summer, consequently, the lighting effect is influenced, and the overall attractiveness is influenced can be effectively avoided, and the needs of the society can be met.