The treatment methods of external ankle fracture are as follows: firstly, for non-displaced fracture, short leg plaster splint or U-shaped plaster splint can be used for 3-4 weeks, practice ankle movement after removal of external fixation, and start weight bearing 2-3 months after injury; secondly, for displaced fracture, generally the displacement can be closed and repaired, and the repositioning is in the opposite direction of the injury mechanism, and the fracture type must be determined before the repositioning technique is decided. The external ankle fracture can be fixed with a short leg plaster tube type, splint or U-shaped plaster clamp after repositioning. The former has better effect on controlling foot rotation, and the latter has better effect on controlling ankle inversion and valgus. In order to control the position of the ankle joint, especially to control rotational displacement, it also needs to be fixed with a long-legged plaster clip. If rectification is ineffective, surgical incision and internal fixation needs to be considered.