A detector support device is described comprising a bracket, slide and detector trays, a connector and a cable. The connector comprises detector and cable interfaces, wherein the detector interface is installed on the detector tray to connect to the detector, and an accommodation cavity, in which the cable interface is located, is opened from an upper surface of the slide tray. A first fixing portion fixed to a bottom wall of the accommodation cavity and a first bending portion extending from the first fixing portion to a first end of the cable are also provided between the first end and a second end of the cable, the first end of the cable extends out of the slide tray so as to be connected to an external connector, and the second end of the cable is connected to the cable interface.
