An intelligent antitheft detachable exhibition box comprises a detachable box body, an antitheft lock and a controller. The detachable box body is formed by connecting sealing and connecting belts with exhibition box plates. The controller is provided with a Bluetooth device, an alarm, an infrared sensor, a proximity switch and a camera. When the intelligent antitheft detachable exhibition box is used, the box body is assembled by movably inserting the sealing and connection belts in the exhibition box plates, and the purpose of transporting the sealed exhibition box is achieved. Meanwhile, the situation of a historical relic exhibit is monitored through the proximity switch, the infrared sensor and the camera, the Bluetooth device is in communication with mobile phones of security officers and the Internet through a network, and the security situation of the historical relic exhibit is monitored through the Internet.