The invention provides an oxidation air transportation pipe. In the invention, relatively big air bubbles can be dissevered to form bubbles with smaller diameter and the contact area of air and serosity is increased, therefore, oxidation rate is increased; the purpose of the invention is realized by the oxidation air transportation pipe. The pipe wall of the oxidation air transportation pipe is provided with a plurality of oxidation air exit-holes; the oxidation air exit-holes are provided with bubble-breaking devices; the bubble-breaking devices are sharp teeth arranged around the oxidation air exit-holes; the sharp teeth incline toward the center of the oxidation air exit-holes.