Abstract: A Mg—Li—Al—Zn alloy is disclosed. The Mg—Li—Al—Zn alloy comprises, in weight percent: 5-15% Li, 1.5-9.0% Al, 0.5-1.5% Zn, 0.4-1.3% Y, 0.18-1.01% Nd, 0.09-0.65% Ce, and the balance Mg and incidental impurities. Experimental data have proved that, this novel Mg—Li—Al—Zn alloy has a flashover temperature in a range between 620° C. and 700° C., such that the flashover temperature of the specifically-designed Mg—Li—Al—Zn alloy is greater than that of commercial LAZ521, LAZ721, LAZ771, LAZ921, and LAZ1491 alloys. Therefore, the Mg—Li—Al—Zn alloy of the present invention can be processed to be a structural article through air melt and casting process.