The invention discloses a pair of three-jaw bone holding forceps capable of conveniently clamping and fixing. The three-jaw bone holding forceps comprise a sliding seat body, wherein a first movable jaw and a second movable jaw are arranged at the end of the sliding seat body and are respectively and movably connected with the end of the sliding seat body through a movable device; the movable device at least comprises an electric insulation hose; the electric insulation hose is filled with electrorheological fluid; and the electrorheological fluid is liquid when not electrified and is hardened into a solid state after electrified. According to the movable device, rotation and fixation of the movable jaws can be realized, the movable jaws can be well stably clamped, repeated simple operations can be realized, and the problems that the existing three-jaw bone holding forceps are low in stability, complicated in traction reduction operation and the like are solved.