The invention relates to a magnesium-zinc-manganese-cerium magnesium alloy material with high zinc content. The magnesium alloy comprises the following components in percentage by mass: 5.0 to 8.0% of Zn, 0.5 to 1.25% of Mn, 0.2 to 1.0% of Ce, less than or equal to 0.15% of inevitable impurities and balance of Mg. Compared with a cerium-containing magnesium-zinc-manganese magnesium alloy, the tensile strength and shear strength of the material provided by the invention are greatly improved; compared with a Mg-Zn-Mn magnesium alloy with high zinc content, the comprehensive mechanical property of the material provided by the invention is obviously improved; compared with a Mg-Al-Zn magnesium alloy, the mechanical property of the material provided by the invention is greatly improved; and compared with a typical ZK60 Mg-Zn-Zr magnesium alloy, the mechanical property of the material provided by the invention is the same as that of the ZK60 alloy, the elongation rate is significantly improved, and the formability is higher, thus the magnesium-zinc-manganese-cerium magnesium alloy material provided by the invention can be used for replacing the ZK60 alloy in the industrial production of metal materials with high mechanical property requirements, such as aviation, war industries and the like.