Exchange case capable of monitoring fire quantity in case body

The utility model discloses an exchange case capable of monitoring the fire quantity in the case body, which comprises an exchange case body, an infrared reception and forwarding detection tube, a controller and an LED indicator light; the infrared reception and forwarding detection tube is fixed on the inner wall of the exchange case body; the LED indicator light is fixed on the outer wall of the exchange case body; and the infrared reception and forwarding detection tube and the LED indicator light are electrically connected with the controller. After the exchange case is adopted, the file quantity in the exchange case can be clearly indicated, and thereby a user can clear up the exchange case when finding that the exchange case is fully loaded.