Mg-9%Li-1%Zn alloy was successfully cast into a 37 mm thick ingot, and then rolled to a thickness of 2 mm in this study. Effects of thermal and mechanical treatments on the microstructures and strengthening mechanisms were investigated. The experimental r Mg-9%Li-1%Zn alloy was successfully cast into a 37 mm thick ingot, and then rolled to a thickness of 2 mm in this study. Effects of thermal and mechanical treatments on the microstructures and strengthening mechanisms were investigated. The experimental r