A problem is to provide an orthodontic implant device that can be easily prepared, and can extend a range of selection of materials forming an extension arm.A solution is the orthodontic implant device having: a pair of anchor members 10 which are fixed to a palate M1； a bridge member 20 arranged so as to link places between the pair of anchor members 10； an arrangement member 30 arranged in the bridge member 20； and an extension arm 40 to move teeth M2. The arrangement member 30 has a fixing portion 31 for fixing the extension arm 40, and a wire-shaped projection portion for arranging the fixing portion 31 in the bridge member 20.
