The invention discloses a removal tool for a transformer respirator and relates to a maintenance tool for electric power facilities. The removal tool for the transformer respirator comprises a frame, two movable pieces and two positioning heads; the frame with both ends symmetrical is provided with two flat plates and is of an arc plate structure; each movable piece is fixed on the flat plate at the end of the frame by means of bolts; a long slotted hole is arranged in the middle of the movable piece; two bolts passing through the long slotted hole are fixed to bolt holes on the flat plates; nuts at the end of the bolts are positioned below the flat plates; each positioning head of a ladder shaft structure is fixed on the upper surface of each movable piece; and the two positioning heads located on the two movable pieces are of the same structure and are symmetrical. The removal tool for the transformer respirator has the advantages that an oil seal bowl of the transformer respirator can be quickly removed, the structure of the removal tool is simple, and removal operation can be completed within a small space with no damage produced to the respirator.