The utility model relates to an aluminum production die sleeve, particularly to an aluminum extrusion self-centering die sleeve. The aluminum extrusion self-centering die sleeve comprises a die sleeve and is characterized in that the front end of the excircle of the die sleeve is tapered through machining, the front end of an inner cavity of the die sleeve is also tapered through machining, and the angles of the two tapers both face the center. According to the die sleeve disclosed by the utility model, the inner taper and the outer taper of the die sleeve are matched with a die and an extrusion barrel, so that the concentricity of the die, the die sleeve and the extrusion barrel is ensured, and the problem of wall thickness deviation of basic materials is solved.