The invention provides a mouth rehabilitation metal dowel pin removal device, and belongs to the field of mouth rehabilitation medical devices and instruments. The mouth rehabilitation metal dowel pin removal device includes a slider, a slide hammer, a parallel rod, a movable joint, a male piece, a female piece, nuts and a screw rod, wherein one end of the slider is fixedly connected with the slide hammer, the slider and the slide hammer form an impact device, the other end of the slider is movably connected with the parallel rod, the tail end of the slider passes through the parallel rod, the tail end of the slider is mounted with the nut, the male piece is connected with the parallel rod through the movable joint, one end of the female piece is movably sleeved on the thread of a screw rod, the other end of the female piece is movably connected with the male piece in a cross manner, the male piece and the female piece form a clamping mechanism, one end of the screw rod is fixedly connected with the parallel rod, the other end of the screw rod is provided with the nut, and the parallel rod, the nut and the screw rod constitute a force-applying device. The removal device is simple in structure, convenient to operate, low in cost, and suitable for dental clinical application. The removal device has good market prospects and facilitates good application in the field of medical devices.