The invention disclsoes a magnesium alloy bracket applicable to dental transplantation. The magnesium alloy bracket is provided with an outer surface for fixing the magnesium alloy bracket into an alveolar hole and a cavity for containing a donor tooth; the magnesium alloy bracket is made of a magnesium alloy material and is gradually degraded along the growth of an alveolar bone. A thread is formed on the outer surface of the magnesium alloy bracket and the magnesium alloy bracket is fixed into the alveolar hole through the thread. By adopting the magnesium alloy bracket, the problem that the matching property of the alveolar hole and the donor tooth is poor can be solved, so that a transplanted tooth has good initial stability and guarantee is provided for later-period healing. Meanwhile, bone formation can be promoted through utilizing degradability and bone induction performance of a magnesium alloy, so that a newly growing bone can smoothly replace the magnesium alloy and the healing of the transplanted tooth is accelerated.