The invention discloses a novel rearing cage which comprises a rearing cage body, wherein a plurality of groups of isolation plates are arranged in the rearing cage body; a temperature adjusting device and a rearing single room that is slidingly connected in a matching manner are arranged above each isolation plate; a through groove is formed in the front end surface of each rearing single room; a plurality of iron wires distributed vertically at equal intervals are arranged in each through groove; each iron wire is fixedly connected with the upper wall and the lower wall of the front end surface of each rearing single room; a temperature adjusting and control room is arranged between each temperature adjusting device and each rearing single room; a front air pipe and a rear air pipe that are arranged front and back are arranged on the left side of each temperature adjusting device; an adjusting and control cavity is formed in each temperature adjusting device; a first sliding groove and a second sliding groove are correspondingly formed in the two sides of each adjusting and control cavity; front air holes communicated with the front air pipes are correspondingly formed in the left side wall and the right side wall of each first sliding groove; rear air holes communicated with the rear air pipes are formed correspondingly formed in the left side wall and the right side wall of each second sliding groove; and a first sliding block is slidingly connected into each first sliding groove.