Switch cabinet lighting device through which illuminating lamp can be maintained without need of opening switch cabinet

The utility model discloses a switch cabinet lighting device through which an illuminating lamp can be maintained without the need of opening the switch cabinet. The switch cabinet lighting device includes a switch cabinet closing plate, an illuminating lamp base, a lamp base bracket and an illuminating lamp, wherein a window is arranged on the switch cabinet closing plate; the lamp base bracket is fixed on one side of the window of the switch cabinet closing plate; one side of the illuminating lamp base is rotationally fixed on the lamp base bracket through a rotating shaft; the illuminating lamp base is matched with the window on the switch cabinet closing plate in position and size; and the illuminating lamp is arranged on the side of the illuminating lamp base facing to the inside of the switch cabinet. The illuminating lamp or other illumination accessories can be replaced quickly on the premise that the switch cabinet is not opened, therefore, the power supply in the switch cabinet is not needed to be c