Magnesium and magnesium alloys have a close-packed hexagonal structure, poor forming performance, and subsequent terminal product deformation capabilities that cannot meet market demand. The company has overcome the international problem of poor stamping capabilities for magnesium alloy sheets and strips. The company adopts continuous casting and rolling process to produce high-strength and toughness superplastic sheet and strip products with a thickness of 0.5-10 mm and a width of 800 mm. Its mechanical properties are better than those of existing magnesium alloy products.