1. Overview of high-plasticity magnesium alloy 2. First-principle calculations 3. Mg-Gd-Zr Medium strength and ultra-high plasticity magnesium alloy 4. Medium strength and high plasticity of Mg-Mn based magnesium alloys 5. Medium strength and high plasticity of Mg-Sn based magnesium alloys 6. Mg-Gd-Y-Zn-Mn high strength and high plasticity magnesium alloys