The present application provides a stationary fixture for machining of an aluminum alloy wheel, includes a machine tool base, first supports, end covers, a first power shaft, bearings, a second end cover, and the like, wherein the first support and a second support are mounted on the machine tool base, the first power shaft is mounted inside a bearing seat, a group of bearings is mounted between the bearing seat and the first power shaft, a nut is mounted at the left end of each bearing to position the inner ring of the bearing, the first end cover is mounted on the left side of the bearing seat at the upper end of the first support by screws, the first sealing ring is mounted between the first end cover and the first power shaft, and the second end cover is fixed to the right side of the bearing seat.