A bone fixing device comprises: a fixed claw (11)； a movable claw (21), capable of being located in a functional position (OP) and an initial position (IP)； a fixed claw connection rod (13), connected to the fixed claw (11) and comprising a through-hole (19) extending in the longitudinal direction (Z) of the rod； a movable claw connection rod (23), connected to the movable claw (21)； and an movable claw handle (25), connected to the movable claw connection rod (23). By using the center of a fixed section of a bone (90) to be fixed as an origin point (O), the opening angle of the fixed claw (11) relative to the origin point (O) is greater than 180°, and the fixed claw (11) defines a clamping plane (P). When the movable claw (21) is located at the function position (OP), the movable claw (21) is located in the clamping plane (P), and the bone (90) to be fixed is fixed between the inner circumference of the movable claw (21) and the inner circumference of the fixed claw (11). By operating the movable claw handle (25), the movable claw connection rod (23) can be rotated and moved back and forth within the through hole (19). By turning the movable claw handle (25), the movable claw (21) rotates around the longitudinal direction (Z) of the rod and reaches the functional position (OP) from the initial position (IP). Because a tissue outside a bone does not need to be cut in a depth direction, smaller pain is brought to patient when a bone is fixed by using the bone fixing device.L'invention concerne un dispositif de fixation osseuse qui comprend : une pince fixe (11) ； une pince mobile (21), apte à se trouver dans une position fonctionnelle (OP) et une position initiale (IP) ； une tige de connexion à pince fixe (13), reliée à la pince fixe (11) et comprenant un orifice traversant (19) s'étendant dans la direction longitudinale (Z) de la tige ； une tige de connexion de pince mobile (23), reliée à la pince mobile (21) ； et une poignée de pince mobile (25), reliée à la tige d
