采用正交法设计了新型Zn-Mg-Ni-V-Al合金镀层的化学成分，并在Q235钢板表面制备不同成分的合金镀层；研究了镁、镍、铝和钒等四种合金元素对镀层可镀性和耐蚀性的影响。结果表明：添加镁、镍、铝和钒的锌合金镀层的耐蚀性普遍优于传统锌镀层和Zn-Ni-V合金镀层的；镁对于镀层耐蚀性的影响最为显著，铝和镁元素对镀层可镀性的影响最大；在试验范围内镍和钒含量对镀层可镀性的影响不显著；新型高耐蚀性合金镀层中各合金元素的优化水平组合（质量分数）为：0.3%～0.5% Mg，≤0.02% Al，0.06% Ni，0.04% V。

The chemical composition of a new Zn-Mg-Ni-V-Al alloy coating was designed by orthogonal method, and alloy coatings with different composition were prepared on the surface of Q235 steel. The effects of Mg, Ni, Al and V on the platability and corrosion resistance of the coating were studied. The results show that the corrosion resistance of the zinc alloy coating added with Mg, Ni, Al and V was better than that of traditional galvanized coating and Zn-Ni-V alloy coating. Mg had the most significant effect on the corrosion resistance, and Al and Mg elements had the greatest influence on the platability for the coating. The effects of Ni and V elements on the platability of the coating were not significant in the test range. The optimized combination of alloy elements in the new high corrosion resistance zinc alloy coating was as following:0.3%~0.5% Mg, ≤ 0.02% Al, 0.06% Ni,0.04% V.