Innovation and novelty: 1. The steel plate is designed in a butterfly shape, which conforms to the shape of the calcaneus and the characteristics of calcaneal fractures; 2. There are five screw holes that allow screws to be drilled radially from the center of the plate for fixation, exerting a convergent and compressive effect on the fracture fragments when all screws are tightened. 3. The central screw hole is designed as longitudinally elliptical to facilitate driving the screw upward at an angle of about 20° into the sustentaculum tali. 4. The device is small in size, measuring 4cm by 3cm, thin at 1.5mm thick, which can reduce skin damage and tendon irritation. 5. The steel plate is made of titanium alloy, which has good malleability and reliability of fixation; it also has good tissue compatibility and fewer implant complications. Practicality: It can be used for reduction and fixation treatment through a lateral incision of the heel, reducing local exposure and dissection, significantly lowering the incidence of incision complications, necrosis of fracture fragments, and posterior articular surface necrosis, which is conducive to fracture healing; it promotes rapid recovery and reduces medical expenses. Wide indications; convenient placement of intraoperative steel plates, simple operation, and continuous improvement in clinical efficacy have made it possible for patients with relative contraindications to receive timely and effective treatment.