Bone rongeur capable of fixing biting cavity

The invention provides a bone rongeur capable of fixing a biting cavity, and belongs to the field of medical instruments. The bone rongeur capable of fixing the biting cavity comprises a first fixingpiece. The first fixing piece is fixedly connected to a first hand-held part and is located on the side of the first hand-held part facing a second hand-held part. A receiving cavity extending along the rotation direction of the first hand-held part is formed on the first fixing piece. Various first fixing parts are arranged in the receiving cavity along the depth direction. The bone rongeur alsoincludes a second fixing piece. The second fixing piece is fixedly connected to the second hand-held part. The second fixing piece is provided with a second fixing part used for fixedly cooperating with the position of the first fixing part. The second fixing piece is movably inserted in the receiving cavity so as to fixedly cooperate with different positions of the first fixing part respectively.The bone rongeur capable o