The invention discloses an environment-friendly high-performance isomeric copper wire and a machining process thereof. The environment-friendly high-performance isomeric copper wire comprises the following raw materials in parts by weight: 50-80 parts of pure copper, 1-8 parts of zinc, 2-8 parts of iron, 3-6 parts of silicon, 1-5 parts of manganese, 2-6 parts of phosphorus, 3-7 parts of tin, 1-4 parts of beryllium, 2-7 parts of chromium, 1-4 parts of zirconium, 3-6 parts of lanthanum, 4-8 parts of cerium, 2-6 parts of antimony, and the balance of inevitable impurities. The copper alloy wire obtained by the components of pure copper, zinc, iron, silicon, manganese, phosphorus, tin, beryllium, chromium, zirconium, lanthanum, cerium and antimony is environment-friendly and excellent in performance, and can be fully applied to all performance copper alloy fields; and the machining process is simple in flow and convenient for control and operation, adopts some conventional pressure machining equipment, and is low in equipment investment, short in production flow, low in manufacturing cost, smooth in product surface and high in precision.