The invention discloses a high strength wrought magnesium alloy, including aluminum, zinc, manganese, calcium, silicon and magnesium. The ratio (weight percentage) is: Aluminum: 1.5% ~ 3.5%, zinc: 0.2% ~ 4%, manganese: 0.1% ~ 0.6%, calcium: 0.01% ~ 2.0%, silicon 0.05% ~ 2.0%, and the rest is magnesium. Aluminum is the main strengthening element in the alloy. Zinc is also a strengthening element in alloys and can improve the plasticity of alloys. The compound addition of ca and Si can form fine Mg#-[2]Si particles with ca as the core in the alloy, which can produce effective dispersion strengthening effect on the alloy. The role of manganese is mainly to improve the corrosion resistance of the alloy, and in the process of alloy dissolution and smelting, it can also form compounds with impurities in the alloy (such as iron), so as to eliminate the harmful effect of iron impurities on the corrosion resistance of the alloy. The invention combines the above elements in a certain proportion to form a high strength magnesium alloy.