The invention relates to the technical field of rehabilitation training, and discloses a pelvic floor muscle training rehabilitation device for anorectal treatment, which comprises a device shell. An air storage box is fixedly connected in the device shell, a movable air pressure block is sleeved in the air storage box, and a fixed top plate is fixedly connected to the outer surface of the upper end of the movable air pressure block. A connecting plate is fixedly connected to the outer surface of the upper end of the fixed top plate, and a first movable plate is movably connected to the outer surface of the left side of the connecting plate. According to the pelvic floor muscle training rehabilitation device for anorectal treatment, for patients with different hip widths, a first baffle and a second baffle are stretched outwards through arms, so that the two sets of movable plates are far away from the internally-connected connecting plate, and after the first baffle and the second baffle are stretched to the proper hip width, the patients lie down again, meanwhile, the arms are loosened, at the moment, under the action of two sets of reinforcing ribs, the two baffles contract inwards through pulling force of the reinforcing ribs, the baffles are attached to the buttocks of people, and use limitation of the patients is reduced.