The invention discloses a 12-core minitype jumper connection free tail fiber leading-out tray. Tail fiber outlets are arranged on the left side and the right side of the front part of the tray by a reasonable design thought; tail fibers are condensed into one bundle to be led out from the left fiber outlet or the right fiber outlet; the tray depth is compressed into the limit; and the tray can be installed in an ultra-thin optical fiber cross-connecting box product. The 12-core minitype jumper connection free tail fiber leading-out tray is composed of a cover plate, a fuse fiber disk, a fiber winding wheel and a bottom plate, wherein the fiber winding wheel is installed on the bottom plate; the left side and the right side in the bottom plate are provided with a fiber outlet and a tail fiber constraint point; the fuse fiber disk is provided with a fuse fiber zone, a storage zone and an outer cable bundle binding point; an outer cable enters the fuse fiber disk after being stripped; the step of binding is carried out on the outer cable bundle binding point; the step of storing is carried out in the storage zone; and the cover plate and the bottom plate are covered. The 12-core minitype jumper connection free tail fiber leading-out tray can be applied to the ultra-thin optical fiber cross-connecting box product in the communication field and other equipment which needs to be provided with the 12-core fused integrating surface plate tray.