The invention discloses a high-strength environmental-protection aluminum alloy wire preparation process. The preparation process comprises the following steps: smelting and continuous casting: pure aluminum ingots are molten as molten aluminum; the molten aluminum is put in formula materials; the formula materials and aluminum comprise 0.001-3% of silicon, 0.001-10% of zinc, 0.05-0.5% of magnesium, 0.15-0.4% of copper, 0.01-0.6% of rare earth, 0.015-0.05% of boron and the balance of aluminum; floating impurities are removed after stirring by 0.1-1 hour; the molten aluminum is cured as aluminum wires with diameters of 8-12 mm; the aluminum wires with the diameters of 8-12 mm are thinned to 9-10 mm after twice or more times of wire drawing, and the elasticity thereof is improved; primary annealing, wire drawing, cleaning, re-annealing and polishing are performed; and detection: aluminum wire samples are sent to a physicochemical chamber for inspection; and chemical components of the aluminum wires are mainly checked. No segregation phenomenon cannot occur; the metallographic structure is uniform; and when other accessories are added, the molten aluminum is firstly molten, and then,other materials are molten under the effect of the molten aluminum without generating the volatilization phenomenon, so that the stable contents of alloy elements are guaranteed, and the performancesof final materials are guaranteed.