The present invention discloses an orthodontic self-locking bracket, comprising a bracket body having an arch wire bracket slot and a bracket cover matched with the bracket body, wherein two sides of the arch wire bracket slot are provided with work wings, a bracket opening is arranged at the intersection of the arch wire bracket slot on the bracket body, and the bracket cover is inserted into the bracket opening and is in sliding fit with the bracket body the left side of the arch wire bracket slot is provided with a pin shaft penetrating through the bracket opening, and the pin shaft is in clamping fit with the lower part of the bracket cover, so that the arch wire bracket slot can be closed and opened by the bracket cover. Generally, the bracket body and the bracket cover are easy to manufacture and can be formed at one time by means of linear cutting, so that the bracket is convenient to operate. Meanwhile, the bracket cover is placed within the bracket body, so that the bracket is less in volume. The bracket can be locked and unlocked only by sliding the bracket cover rather than overturning the bracket cover in the clinical application, not only can the complex operation for ligaturing the steel wire be eliminated, but also the bracket can be conveniently operated.
