The invention relates to the technical field of aluminum alloy fasteners. The invention further discloses a machining method of a high-strength aluminum alloy sleeve. The high-strength aluminum alloysleeve comprises the following alloy elements in parts by weight: 0.2%-6% of Zn, 0.2%-6% of Mg, 0.2%-3% of Mn, 0.2%-4% of Cu, 0.1%-2% of Sc, 0.1%-2% of Yb, 0.1%-1% of Tb, and 0.2%-2% of Zr, with the balance being Al. According to the machining method, after the selected alloy components are subjected to aging treatment, the alloy sleeve can meet the requirements that the tensile strength is 450 MPa or above and the hardness is 160 HV or above. Warm upsetting forming is performed on the material; the hot temperature, the heating time and the production speed are controlled, it is guaranteed that a product does not crack in the forming process, meanwhile, the mechanical property is not obviously reduced, the production efficiency can reach 50 pieces per minute or above through the warm upsetting technology, the material utilization rate reaches 90% or above, the efficiency is improved by 100 times or above than that of a traditional machining mode, and the product machining cost is greatly reduced.