An orthopedic stabilizing device, comprising flat arc-shaped tube bodies (1), arc-shaped plate bodies (2) and arc-shaped pressing plates (3), three arc-shaped tube bodies (1), three arc-shaped plate bodies (2) and three arc-shaped pressing plates (3) being provided; the arc-shaped tube bodies (1) and the arc-shaped plate bodies (2) are disposed adjacent to each other in a circular arrangement, two ends of one arc-shaped plate body (2) being movably inserted at the interior of end portions of two adjacent arc-shaped tube bodies (1); a plurality of tooth grooves (6) are evenly provided on outer side surfaces of the arc-shaped plate bodies (2), and outer side surfaces of the arc-shaped tube bodies (1) are symmetrically provided near two ends thereof with snap-in pieces (7) matching the tooth grooves (6). The stabilizing device has a stable structure, may effectively prevent the entire device from loosening, has a better stabilizing effect, is more convenient to use, and is constantly in an integrated state without having to be reassembled every time the device is used, being convenient and fast to use; both large adjustment and fine adjustment may be performed to achieve precise adjustment, and the device stabilizes fractures well and is beneficial in better healing the bones of a patient.L'invention concerne un dispositif de stabilisation orthopédique, comprenant des corps de tube plats en forme d'arc (1), des corps de plaque en forme d'arc (2) et des plaques de pression en forme d'arc (3), trois corps de tube en forme d'arc (1), trois corps de plaque en forme d'arc (2) et trois plaques de pression en forme d'arc (3) étant décrits ici ; les corps de tube en forme d'arc (1) et les corps de plaque en forme d'arc (2) sont disposés adjacents l'un à l'autre dans un agencement circulaire, deux extrémités d'un corps de plaque en forme d'arc (2) étant insérées de façon mobile à l'intérieur des parties extrémité de deux corps de tube en forme d'arc (1) adjacents ; une pluralit