Opening and closing device of rotating cage type jukebox disc tray

An opening and closing device of rotating cage type jukebox disc tray. The opening and closing device of rotating cage type jukebox disc tray comprises a first disc tray and an opening and closing mechanism of disc tray. An end of the first disc tray is installed on a first fixing post, the other end of the first disc tray carries a plurality of discs, and the first disc tray has a first ear portion on a lateral side. The opening and closing mechanism of disc tray comprises a first linkage mechanism and a first driving device, the first linkage mechanism comprises a first linkage bar, a firstsliding member and a second linkage bar, the first sliding member is slidingly disposed on the first linkage bar, the second linkage bar is slidingly disposed on the first sliding member, and the first sliding member and the second linkage bar slide along different directions. When an end portion of the second linkage bar is connected to the first ear portion, the first driving device drives the first sliding member to sl