The invention provides a car accessory display cabinet. The car accessory display cabinet comprises a cabinet body, a glass door, a dampproof device and a burglar-proof lock. The front end of the cabinet body is provided with an opening. The upper end and the lower end of the opening are provided with contact rails. The interior of the cabinet body is divided to three layers of display spaces by using tempered glass. The top face and the bottom face of the tempered glass are adhered with a layer of a fluorescent film. Two side walls of each display space are provided with light pipes. The upper end and the lower end of the glass door are provided with pulleys corresponding to the contact rails. The front face and the back face of the glass door are provided with anti-reflective films. The anti-reflective film is a composite material of polytetrafluoroethylene, trititanium pentoxide and magnesium fluoride. The dampproof device comprises a temperature sensor, a humidity sensor and a controller. The temperature sensor and the humidity sensor are installed at the rear wall of the cabinet body. The controller is installed at the external wall of the cabinet body, and used for displaying the numerical values of the temperature sensor and the humidity sensor. The burglar-proof lock is installed on the glass door. The car accessory display cabinet has the characteristics of novel structure, moisture resistance, transparency, and brightening.