Experimental animal fixing device

The utility model belongs to the technical field of biomedical experiment instruments, and discloses an experimental animal fixing device which comprises an operation table, a fixing assembly, a limiting device and a supporting column, the fixing assembly comprises a first fixing rod, a second fixing rod and a fixing hole, the first fixing rod and the second fixing rod are both provided with fixing grooves, the fixing grooves are connected with sliding blocks in a sliding mode, and the sliding blocks are connected with the limiting device. The sliding block is connected with a first binding belt, a second binding belt is connected to the lower portion of the operation table, the second binding belt is matched with the fixing holes, the two first fixing rods and the two fixing holes are arranged in a mirroring mode relative to the operation table, the limiting device comprises a limiting body and a clamping block, the limiting body is provided with a limiting groove, and the clamping block is arranged in the l