A fracture treatment device that can be easily fixed to bones on both sides of a fracture site and can be corrected even when bones on both sides are displaced. A fracture treatment tool fixed to bones (31) on both sides of a fracture site (30) via screw members (14), and a plurality of through holes through which bolts (14) penetrate the fracture treatment instrument (10) (11) and a communicating portion that connects the outer edge portions (12) of the plurality of through-holes (11) and retains the shape at the end of the deformation when the external force is applied by deforming the shape and stopping applying the external force ( 13). Thereby, since it can fix to the bone of both sides of a fracture site part (30) with a screw member (14), compared with the conventional wire type thing, it is easy to fix to the bone of both sides.骨折部位の両側の骨に固定しやすく且つ両側の骨がずれた場合でも修正が可能な骨折治療器具を提供する。 骨折部位（30）の両側の骨（31）にネジ部材（14）を介して固定される骨折治療用具であって、骨折治療器具（10）に、ボルト（14）が貫通する複数の貫通孔（11）と、複数の貫通孔（11）の外縁部（12）同士を連通し且つ外力を加えると形状が変形して外力を加えるのを止めると変形終了時の形状を保持する連通部（13）とを設ける。これにより、ネジ部材（14）で骨折部位（30）の両側の骨に固定することができるので、従来のワイヤー式のものに比べて、両側の骨に固定しやすい。
