The invention discloses a switch cabinet capable of detecting flashover. The switch cabinet capable of detecting the flashover comprises a switch cabinet body, wherein a flashover photoelectric sensor, a flashover position sensor, an ozone sensor and a plurality of cameras are arranged inside the switch cabinet body, and the cameras are connected with a monitor. The flashover photoelectric sensor is capable of detecting lightning flash or sparks when flashover occurs, the flashover position sensor is capable of positioning the position where the flashover occurs, and the ozone sensor is capable of detecting the content of ozone in the switch cabinet body. By means of the structure, when the flashover occurs, the flashover photoelectric sensor can timely detect the lightning flash or the sparks and sends the signals to a controller. Meanwhile, the flashover position sensor can position the lightning flash or the sparks and sends the signals to the controller. Therefore, a detection worker can arrange a maintenance worker to timely replace an insulating part in the position according to the received flashover and position signals when overhauling the switch cabinet, overhaul is more convenient and rapid, and the switch cabinet is safer and more reliable to operate.