Self-ligating bracket

The utility model relates to the technical field of orthodontics. The utility model relates to a bracket, in particular to a self-ligating bracket. The bracket comprises a bracket bottom plate, a bracket main body, an arch wire groove and a cover body, a sliding groove is formed in the bracket body, a sliding block is fixed to the cover body, a first hole, a transition groove and a second hole areformed in the side, facing the bracket body, of the cover body, a through groove is formed in the side, facing the cover body, of the bracket body, a clamping ring and an elastic piece are arranged in the through groove, and a first guide piece and a second guide piece are arranged in the first hole and the second hole respectively. When the arch wire groove needs to be opened, the clamping ringenters the second hole through the transition groove, the elastic piece limits the clamping ring in the second hole, and at the moment, the arch wire groove is opened. When the arch wire groove needsto be closed, the clamping