Orthodontic brackets that can accurately be mounted to the surface of teeth to effectively perform orthodontic treatment. The orthodontic bracket according to the present invention is characterized in that, a marker is provided on at least a portion of an outline that is generated by crossing a plane including a longitudinally extending center line, on the archwire slot base of the archwire slot and vertical to the archwire slot base, and an outer surface of the bracket with each other. The marker can be selected from the group consisting of a protrusion, a projection, a slit, a notch and a paint. Another orthodontic bracket according to the present invention has an insert hole drilled from an outer surface of the bracket to a portion just before a base of the body along a line passing through a point that is generated by crossing a line, which is generated by crossing a plane including a longitudinally extending center line, on the archwire slot base of the archwire slot and vertical to the archwire slot base, and the body base, and a plane vertical to the center line of the archwire slot and dividing the body exactly into two parts. This bracket is especially preferably used for indirect method as well as direct method.